user actions的用法和樣例：
例句
- Launch assistive technologies at login time by associating a user action with an assistive technology application.
登錄時啟動輔助技術，聯接用戶動作和輔助技術應用程序。 - It emulates user actions to ensure that execution paths operate correctly and the appropriate responses are returned for the given requests.
它模擬用戶動作來保證執行路徑操作正確，並對給定的請求給出合適的反應。
