名词
中文翻译：Unknown
同义词：
['switch', 'toggle', 'snap-on']
例句：
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1. The camera has a snap switch on the back for easy operation.
相机背面有一个快门开关，便于操作。
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2. The car's engine has a snap switch to turn it off quickly.
汽车的引擎有一个快门开关，可以迅速关闭。
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3. The door has a snap switch that opens and closes automatically.
门有一个快门开关，可以自动打开和关闭。