名词
中文翻译：关闭开关
同义词：
['off switch', 'shutdown switch', 'power off switch']
例句：
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1. The engineer shut down the machine to inspect it.
工程师关闭机器以进行检查。
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2.The power off switch is located on the wall behind the desk.
电源关闭开关位于办公桌后面的墙上。
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3. When the lights dimmed, he quickly turned off the switch.
当灯光变暗时，他迅速关掉了开关。