| 1. | To start an operation in the background , create a
要在后台开始一项操作，请创建 |
| 2. | This example plays a looping sound in the background
此示例在后台播放循环声音。 |
| 3. | Method to play the sound in the background until the
方法在后台播放声音，直至调用 |
| 4. | This example stops a sound playing in the background
此示例停止在后台中播放声音。 |
| 5. | Downloads an application update in the background
在后台下载应用程序更新。 |
| 6. | The two actress were chatting away in the greenroom
两个女演员在后台聊天。 |
| 7. | He was sitting above the stage , watching over the crowd .
他正坐在后台，俯瞰人群。 |
| 8. | A daemon is a process that runs in the background
一个精灵是在后台作业运行的程序。 |
| 9. | Walkthrough : running an operation in the background
演练：在后台运行操作 |
| 10. | How to : stop playing sounds in the background
>如何：停止在后台播放声音 |
