diff --git a/en/device_api/sensor/sensor_if.h b/en/device_api/sensor/sensor_if.h
index bca34655e1ab30418cd2456e433c8b9d073d91eb..642b88c25a0a1a37c7bc4e081061714ca2c3fc06 100644
--- a/en/device_api/sensor/sensor_if.h
+++ b/en/device_api/sensor/sensor_if.h
@@ -17,10 +17,10 @@
  * @addtogroup Sensor
  * @{
  *
- * @brief Provides unified APIs for sensor services to access sensor drivers.
+ * @brief Provides APIs for sensor services to access the sensor driver.
  *
  * A sensor service can obtain a sensor driver object or agent and then call APIs provided by this object or agent to
- * access different types of sensor devices based on the sensor IDs, thereby obtaining sensor information,
+ * access different types of sensor devices, thereby obtaining sensor information,
  * subscribing to or unsubscribing from sensor data, enabling or disabling a sensor,
  * setting the sensor data reporting mode, and setting sensor options such as the accuracy and measurement range.
  *
@@ -50,7 +50,7 @@ extern "C" {
 #endif /* __cplusplus */
 
 /**
- * @brief Defines the functions for performing basic operations on sensors.
+ * @brief Defines the interface for performing basic operations on sensors.
  *
  * The operations include obtaining sensor information, subscribing to or unsubscribing from sensor data,
  * enabling or disabling a sensor, setting the sensor data reporting mode, and setting sensor options such as
@@ -75,8 +75,8 @@ struct SensorInterface {
     int32_t (*GetAllSensors)(struct SensorInformation **sensorInfo, int32_t *count);
 
     /**
-     * @brief Enables the sensor available in the sensor list based on the specified sensor ID.
-     * The subscriber can obtain the sensor data only after the sensor is enabled.
+     * @brief Enables a sensor available in the sensor list.
+     * Subscribers can obtain sensor data only after the sensor is enabled.
      *
      * @param sensorId Indicates the sensor ID. For details, see {@link SensorTypeTag}.
      *
@@ -89,7 +89,7 @@ struct SensorInterface {
     int32_t (*Enable)(int32_t sensorId);
 
     /**
-     * @brief Disables an enabled sensor.
+     * @brief Disables a sensor.
      *
      * @param sensorId Indicates the sensor ID. For details, see {@link SensorTypeTag}.
      *
@@ -102,7 +102,7 @@ struct SensorInterface {
     int32_t (*Disable)(int32_t sensorId);
 
     /**
-     * @brief Sets the data sampling interval and data reporting interval for the specified sensor.
+     * @brief Sets the data sampling interval and data reporting interval for a sensor.
      *
      * @param sensorId Indicates the sensor ID. For details, see {@link SensorTypeTag}.
      * @param samplingInterval Indicates the sensor data sampling interval to set, in nanoseconds.
@@ -117,13 +117,13 @@ struct SensorInterface {
     int32_t (*SetBatch)(int32_t sensorId, int64_t samplingInterval, int64_t reportInterval);
 
     /**
-     * @brief Sets the data reporting mode for the specified sensor.
+     * @brief Sets the data reporting mode for a sensor.
      *
      * @param sensorId Indicates the sensor ID. For details, see {@link SensorTypeTag}.
      * @param mode Indicates the data reporting mode to set. For details, see {@link SensorModeType}.
      *
-     * @return Returns <b>0</b> if the sensor data reporting mode is successfully set.
-     * @return Returns a negative value if the sensor data reporting mode is failed set.
+     * @return Returns <b>0</b> if the operation is successful.
+     * @return Returns a negative value if the operation fails.
      *
      * @since 2.2
      * @version 1.0
@@ -131,13 +131,13 @@ struct SensorInterface {
     int32_t (*SetMode)(int32_t sensorId, int32_t mode);
 
     /**
-     * @brief Sets options for the specified sensor, including its measurement range and accuracy.
+     * @brief Sets options for a sensor, including its measurement range and accuracy.
      *
      * @param sensorId Indicates the sensor ID. For details, see {@link SensorTypeTag}.
      * @param option Indicates the options to set, such as the measurement range and accuracy.
      *
-     * @return Returns <b>0</b> if the options are successfully set.
-     * @return Returns <b>0</b> if the options are failed set.
+     * @return Returns <b>0</b> if the operation is successful.
+     * @return Returns <b>0</b> if the operation fails.
      *
      * @since 2.2
      * @version 1.0
@@ -145,17 +145,19 @@ struct SensorInterface {
     int32_t (*SetOption)(int32_t sensorId, uint32_t option);
 
     /**
-     * @brief Registers the callback for reporting sensor data to the subscriber.
+     * @brief Registers a callback for reporting sensor data.
      *
      * @param groupId Indicates the sensor group ID.
-     * The sensorId enumeration value range is 128-160, which means that the medical sensor service is subscribed.
-     * It only needs to be subscribed once successfully, and there is no need to subscribe repeatedly.
-     * The sensorId enumeration value range is not within 128-160, which means that the traditional sensor
-     * is subscribed, and the subscription is successful once.
+     * If groupId is set to a value within the range 128-160, this function is used to 
+     * register a callback for reporting data of medical sensors.
+     * You only need to register a callback once for all medical sensors.
+     * If groupId is set to a value outside the range 128-160, this function is used to 
+     * register a callback for reporting data of traditional sensors.
+     * You only need to register a callback once for all traditional sensors.
      * @param cb Indicates the callback to register. For details, see {@link RecordDataCallback}.
      *
-     * @return Returns <b>0</b> if the callback is successfully registered.
-     * @return Returns a negative value if the  callback is failed registered..
+     * @return Returns <b>0</b> if the operation is successful.
+     * @return Returns a negative value if the operation fails.
      *
      * @since 2.2
      * @version 1.0
@@ -166,14 +168,16 @@ struct SensorInterface {
      * @brief Deregisters the callback for reporting sensor data.
      *
      * @param groupId Indicates the sensor group ID.
-     * The sensorId enumeration value range is 128-160, which means that the medical sensor service is subscribed.
-     * It only needs to cancel the subscription once successfully, and there is no need to
-     * cancel the subscription repeatedly. The sensorId enumeration value range is not within 128-160,
-     * which means that the traditional sensor is subscribed. You can cancel the subscription once successfully.
-     * @param cb Indicates the callback to register. For details, see {@link RecordDataCallback}.
+     * If groupId is set to a value within the range 128-160, this function is used to 
+     * register a callback for reporting data of medical sensors.
+     * You only need to register a callback once for all medical sensors.
+     * If groupId is set to a value outside the range 128-160, this function is used to 
+     * register a callback for reporting data of traditional sensors.
+     * You only need to register a callback once for all traditional sensors.
+     * @param cb Indicates the callback to deregister. For details, see {@link RecordDataCallback}.
      *
-     * @return Returns <b>0</b> if the callback is successfully deregistered.
-     * @return Returns a negative value if the callback is failed deregistered.
+     * @return Returns <b>0</b> if the operation is successful.
+     * @return Returns a negative value if the operation fails.
      *
      * @since 2.2
      * @version 1.0
@@ -184,14 +188,9 @@ struct SensorInterface {
 /**
  * @brief Creates a <b>SensorInterface</b> instance.
  *
- * @param sensorId Indicates the sensor ID. For details, see {@link SensorTypeTag}.
- * You can use the instance to obtain sensor information, subscribe to or unsubscribe from sensor data,
- * enable or disable a sensor, set the sensor data reporting mode, and set the sensor options such as the accuracy and
- * measurement range.
- * @param cb Indicates the callback to register. For details, see {@link RecordDataCallback}.
  *
- * @return Returns a non-zero value if the instance is successfully created.
- * @return Returns a negative value if the instance is failed created.
+ * @return Returns a non-zero value if the operation is successful.
+ * @return Returns a negative value if the operation fails.
  *
  * @since 2.2
  * @version 1.0
@@ -199,10 +198,10 @@ struct SensorInterface {
 const struct SensorInterface *NewSensorInterfaceInstance(void);
 
 /**
- * @brief Releases the <b>SensorInterface</b> instance.
+ * @brief Releases this <b>SensorInterface</b> instance.
  *
- * @return Returns <b>0</b> if the instance is successfully released.
- * @return Returns a negative value if the instance is failed released.
+ * @return Returns <b>0</b> if the operation is successful.
+ * @return Returns a negative value if the operation fails.
  *
  * @since 2.2
  * @version 1.0
diff --git a/en/device_api/sensor/sensor_type.h b/en/device_api/sensor/sensor_type.h
index c7af7feddc2101d3b184f34b178f7b54a2f7a6e8..13eb20089d8024de3eef9c9d6098c20faf1a2171 100644
--- a/en/device_api/sensor/sensor_type.h
+++ b/en/device_api/sensor/sensor_type.h
@@ -17,10 +17,10 @@
  * @addtogroup Sensor
  * @{
  *
- * @brief Provides unified APIs for sensor services to access sensor drivers.
+ * @brief Provides APIs for sensor services to access the sensor driver.
  *
  * A sensor service can obtain a sensor driver object or agent and then call APIs provided by this object or agent to
- * access different types of sensor devices based on the sensor IDs, thereby obtaining sensor information,
+ * access different types of sensor devices, thereby obtaining sensor information,
  * subscribing to or unsubscribing from sensor data, enabling or disabling a sensor,
  * setting the sensor data reporting mode, and setting sensor options such as the accuracy and measurement range.
  *
@@ -30,7 +30,7 @@
 /**
  * @file sensor_type.h
  *
- * @brief Defines the data used by the sensor module, including the sensor types, sensor information,
+ * @brief Defines the data used by the sensor module, including the sensor type, sensor information,
  * and reported sensor data.
  *
  * @since 2.2
@@ -54,7 +54,7 @@ extern "C" {
 #define SENSOR_VERSION_MAX_LEN    16
 
 /**
- * @brief Enumerates return values of the sensor module.
+ * @brief Enumerates the return values of the sensor module.
  *
  * @since 2.2
  */
@@ -65,7 +65,7 @@ enum SensorStatus {
     SENSOR_FAILURE           = -1,
     /**< The operation is not supported. */
     SENSOR_NOT_SUPPORT       = -2,
-    /**< The sensor parameter is invalid. */
+    /**< A parameter is invalid. */
     SENSOR_INVALID_PARAM     = -3,
     /**< The sensor service is invalid. */
     SENSOR_INVALID_SERVICE   = -4,
@@ -74,7 +74,7 @@ enum SensorStatus {
 };
 
 /**
- * @brief Enumerates sensor types.
+ * @brief Enumerates the sensor types.
  *
  * @since 2.2
  */
@@ -85,7 +85,7 @@ enum SensorTypeTag {
     SENSOR_TYPE_ACCELEROMETER       = 1,
     /**< Gyroscope sensor */
     SENSOR_TYPE_GYROSCOPE           = 2,
-    /**< Photoplethysmography sensor */
+    /**< Photoplethysmography (PPG) sensor */
     SENSOR_TYPE_PHOTOPLETHYSMOGRAPH = 3,
     /**< Electrocardiogram (ECG) sensor */
     SENSOR_TYPE_ELECTROCARDIOGRAPH  = 4,
@@ -107,11 +107,11 @@ enum SensorTypeTag {
     SENSOR_TYPE_PROXIMITY           = 12,
     /**< Humidity sensor */
     SENSOR_TYPE_HUMIDITY            = 13,
-    /**< The begin of medical sensorId enumeration value range */
+    /**< Start ID of medical sensors */
     SENSOR_TYPE_MEDICAL_BEGIN       = 128,
-    /**< The end of medical sensorId enumeration value range */
+    /**< End ID of medical sensors */
     SENSOR_TYPE_MEDICAL_END         = 160,
-    /**< Maximum type of a physical sensor */
+    /**< Maximum ID of physical sensors */
     SENSOR_TYPE_PHYSICAL_MAX        = 255,
     /**< Orientation sensor */
     SENSOR_TYPE_ORIENTATION         = 256,
@@ -150,7 +150,7 @@ enum SensorTypeTag {
 };
 
 /**
- * @brief Enumerates accuracy types of sensors.
+ * @brief Enumerates the accuracy types of sensors.
  *
  * @since 2.2
  */
@@ -168,7 +168,7 @@ enum SensorAccuracyType {
 };
 
 /**
- * @brief Enumerates measurement ranges of sensors.
+ * @brief Enumerates the measurement ranges of sensors.
  *
  * @since 2.2
  */
@@ -179,48 +179,48 @@ enum SensorRangeType {
     SENSOR_RANGE_LEVEL2 = 1,
     /**< Measurement range level 3 */
     SENSOR_RANGE_LEVEL3 = 2,
-    /**< Maximum measurement range level */
+    /**< Maximum measurement range */
     SENSOR_RANGE_LEVEL_MAX,
 };
 
 /**
- * @brief Enumerates data reporting modes of sensors.
+ * @brief Enumerates the data reporting modes of sensors.
  *
  * @since 2.2
  */
 enum SensorModeType {
     /**< Default data reporting mode */
     SENSOR_MODE_DEFAULT   = 0,
-    /**< Real-time data reporting mode to report a group of data each time */
+    /**< Reporting a group of data each time in real-time data reporting mode */
     SENSOR_MODE_REALTIME  = 1,
-    /**< Real-time data reporting mode to report data upon status changes */
+    /**< Reporting data upon status changes in real-time data reporting mode */
     SENSOR_MODE_ON_CHANGE = 2,
-    /**< Real-time data reporting mode to report data only once */
+    /**< Reporting data only once in real-time data reporting mode */
     SENSOR_MODE_ONE_SHOT  = 3,
-    /**< FIFO-based data reporting mode to report data based on the configured cache size */
+    /**< Reporting data based on the configured buffer size in FIFO-based data reporting mode */
     SENSOR_MODE_FIFO_MODE = 4,
     /**< Maximum sensor data reporting mode */
     SENSOR_MODE_MAX,
 };
 
 /**
- * @brief Enumerates hardware service group for sensors.
+ * @brief Enumerates the sensor groups.
  *
  * @since 2.2
  */
 enum SensorGroupType {
-    /**< traditional sensor type, the sensorId enumeration value range is 128-160 */
+    /**< Traditional sensor group, whose value range is not within 128-160 */
     TRADITIONAL_SENSOR_TYPE = 0,
-    /**< medical sensor type, the sensorId enumeration value range is not within 128-160 */
+    /**< Medical sensor group, whose value range is 128-160 */
     MEDICAL_SENSOR_TYPE = 1,
-    /**< Maximum sensor type */
+    /**< Maximum sensor group type */
     SENSOR_GROUP_TYPE_MAX,
 };
 
 /**
- * @brief Defines basic sensor information.
+ * @brief Defines the basic sensor information.
  *
- * Information about a sensor includes the sensor name, vendor, firmware version, hardware version, sensor type ID,
+ * The basic sensor information includes the sensor name, vendor, firmware version, hardware version, sensor type ID,
  * sensor ID, maximum measurement range, accuracy, and power.
  *
  * @since 2.2
@@ -236,7 +236,7 @@ struct SensorInformation {
     char hardwareVersion[SENSOR_VERSION_MAX_LEN];
     /**< Sensor type ID (described in {@link SensorTypeTag}) */
     int32_t sensorTypeId;
-    /**< Sensor ID, defined by the sensor driver developer */
+    /**< Sensor ID, defined by sensor driver developers */
     int32_t sensorId;
     /**< Maximum measurement range of the sensor */
     float maxRange;
@@ -247,10 +247,10 @@ struct SensorInformation {
 };
 
 /**
- * @brief Defines the data reported by the sensor.
+ * @brief Defines the data reported by sensors.
  *
  * The reported sensor data includes the sensor ID, sensor algorithm version, data generation time,
- * data options (such as the measurement range and accuracy), data reporting mode, data address, and data length.
+ * data options, data reporting mode, data address, and data length.
  *
  * @since 2.2
  */
@@ -272,9 +272,9 @@ struct SensorEvents {
 };
 
 /**
- * @brief Defines the callback for reporting sensor data. This callback needs to be registered when
- * a sensor user subscribes to sensor data. Only after the sensor is enabled, the sensor data subscriber can receive
- * sensor data. For details, see {@link SensorInterface}.
+ * @brief Defines the callback for reporting sensor data. A sensor user must register this callback
+ * when subscribing to sensor data. The subscriber can receive
+ * sensor data only after the sensor is enabled. For details, see {@link SensorInterface}.
  *
  * @since 2.2
  */