名词
中文翻译：安全掣
同义词：
['safety catch', 'safety lock', 'safety catcher']
例句：
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1. The safety pawl on the door is designed to prevent the door from being opened accidentally.
门上的安全掣设计用来防止门被意外打开。
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2. The safety pawl was used to secure the heavy box in place.
安全掣被用来固定那个沉重的箱子。
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3. The worker had to remove the safety pawl before he could start working on the machine.
工人在开始修理机器之前必须先取下安全掣。