Starts execution of a background operation.
开始执行后台操作。
Including background operation code database, interface code to operate.
包括后台数据库操作代码，界面操作代码。
Music: moderate volume of the background music, television normal operation.
音乐：背景音乐音量适中，电视操作正常。
Music: moderate volume of the background music, television normal operation.
音乐：背景音乐音量适中，电视操作正常。
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