diff --git a/api/@ohos.usbManager.d.ts b/api/@ohos.usbManager.d.ts
index 892c6685f055fc1b3a41e87c7e929ed7960d7750..18bc9923bb6335305c1981e2a517074833ae48d3 100644
--- a/api/@ohos.usbManager.d.ts
+++ b/api/@ohos.usbManager.d.ts
@@ -968,7 +968,7 @@ declare namespace usbManager {
    * @throws { BusinessError } 401 - Parameter error. Possible causes:
    * <br>1. Mandatory parameters are left unspecified.
    * <br>2. Incorrect parameter types.
-   * @throws { BusinessError } 14400001 - Permission denied. Call requestAccessoryRight to get the right first.
+   * @throws { BusinessError } 14400001 - Access right denied. Call requestRight to get the USBDevicePipe access right first.
    * @throws { BusinessError } 14400004 - Service exception. Possible causes:
    * <br>1. No accessory is plugged in.
    * @throws { BusinessError } 14401001 - The target USBAccessory not matched.
@@ -986,7 +986,7 @@ declare namespace usbManager {
    * <br>1. Mandatory parameters are left unspecified.
    * <br>2. Incorrect parameter types.
    * @throws { BusinessError } 801 - Capability not supported.
-   * @throws { BusinessError } 14400001 - Permission denied. Call requestAccessoryRight to get the right first.
+   * @throws { BusinessError } 14400001 - Access right denied. Call requestRight to get the USBDevicePipe access right first.
    * @throws { BusinessError } 14400004 - Service exception. Possible causes:
    * <br>1. No accessory is plugged in.
    * @throws { BusinessError } 14401001 - The target USBAccessory not matched.
@@ -2379,7 +2379,7 @@ declare namespace usbManager {
    * @throws { BusinessError } 14400010 - Other USB error. Possible causes:
    * <br>1.Unrecognized discard error code.
    * @throws { BusinessError } 14400013 - The USBDevicePipe validity check failed. Possible causes:
-   * <br>1.The input parameters fails the validation check.
+   * <br>1.The input parameters fail the validation check.
    * <br>2.The call chain used to obtain the input parameters is not reasonable.
    * @syscap SystemCapability.USB.USBManager
    * @since 20
diff --git a/api/@ohos.usbManager.serial.d.ts b/api/@ohos.usbManager.serial.d.ts
index d458a2b833d142c21d466d75223a6920d934aac9..75b9f3030903a90f83762f5b2817f2297f41dceb 100644
--- a/api/@ohos.usbManager.serial.d.ts
+++ b/api/@ohos.usbManager.serial.d.ts
@@ -51,8 +51,11 @@ declare namespace serialManager {
   /**
    * Requests the right for accessing a serial port device from the user. The system applications do not need to call this API.
    * @param { number} portId ID of the target device. For details, see <b>SerialPort.portId</b>.
-   * @returns { Promise<boolean>} Promise used to return the result. The value <b class="+ topic/ph hi-d/b " id="b529434412284">true</b> means the user allows the access; the value <b class="+ topic/ph hi-d/b " id="b89755211297">false</b> means the opposite.
-   * @throws { BusinessError } 401 Parameter error. Possible causes: 1. Mandatory parameters are left unspecified; 2. Incorrect parameter types; 3. Parameter verification failed.
+   * @returns { Promise<boolean>} Promise used to return the result.
+   * The value <b class="+ topic/ph hi-d/b " id="b529434412284">true</b> means the user allows the access;
+   * the value <b class="+ topic/ph hi-d/b " id="b89755211297">false</b> means the opposite.
+   * @throws { BusinessError } 401 Parameter error. Possible causes:
+   * 1. Mandatory parameters are left unspecified; 2. Incorrect parameter types; 3. Parameter verification failed.
    * @throws { BusinessError } 14400005 Database operation exception.
    * @throws { BusinessError } 31400001 Serial port management exception.
    * @throws { BusinessError } 31400003 PortId does not exist.
@@ -152,7 +155,8 @@ declare namespace serialManager {
    * Reads data from a serial port device. This API uses a promise to return the result.
    * @param { number} portId ID of the target device. For details, see <b>SerialPort.portId</b>.
    * @param { Uint8Array } buffer Buffer for storing the data read, with a maximum length of 8192 bytes.
-   * @param { number } timeout Timeout duration for reading data. The value is a non-negative number. The default value <b class="+ topic/ph hi-d/b " id="b98612056312">0</b> indicates that there is no time limit for data reading.
+   * @param { number } timeout Timeout duration for reading data.
+   * The value is a non-negative number. The default value <b class="+ topic/ph hi-d/b " id="b98612056312">0</b> indicates that there is no time limit for data reading.
    * @returns { Promise<number> } Promise used to return the length of the data read.
    * @throws { BusinessError } 401 Parameter error. Possible causes:
    * 1. Mandatory parameters are left unspecified; 2. Incorrect parameter types; 3. Parameter verification failed.
@@ -192,7 +196,8 @@ declare namespace serialManager {
    * Writes data to a serial port device. This API uses a promise to return the result.
    * @param { number} portId ID of the target device. For details, see <b>SerialPort.portId</b>.
    * @param { Uint8Array } buffer Buffer for storing the data written, with a maximum length of 128 KB.
-   * @param { number } timeout Timeout duration for writing data. The value is a non-negative number. The default value <b class="+ topic/ph hi-d/b " id="b2661577365">0</b> indicates that there is no time limit for data writing.
+   * @param { number } timeout Timeout duration for writing data.
+   * The value is a non-negative number. The default value <b class="+ topic/ph hi-d/b " id="b2661577365">0</b> indicates that there is no time limit for data writing.
    * @returns { Promise<number> } Promise used to return the length of the data written.
    * @throws { BusinessError } 401 Parameter error. Possible causes:
    * 1. Mandatory parameters are left unspecified; 2. Incorrect parameter types; 3. Parameter verification failed.
@@ -212,7 +217,8 @@ declare namespace serialManager {
    * Writes data to a serial port device. This API returns the result synchronously.
    * @param { number} portId ID of the target device. For details, see <b>SerialPort.portId</b>.
    * @param { Uint8Array } buffer Buffer for storing the data written, with a maximum length of 128 KB.
-   * @param { number } timeout Timeout duration for writing data. The value is a non-negative number. The default value <b class="+ topic/ph hi-d/b " id="b45639213380">0</b> indicates that there is no time limit for data writing.
+   * @param { number } timeout Timeout duration for writing data.
+   * The value is a non-negative number. The default value <b class="+ topic/ph hi-d/b " id="b45639213380">0</b> indicates that there is no time limit for data writing.
    * @returns { number } Length of the data written.
    * @throws { BusinessError } 401 Parameter error. Possible causes:
    * 1. Mandatory parameters are left unspecified; 2. Incorrect parameter types; 3. Parameter verification failed.