名词
中文翻译：安全扣
同义词：
['safety catch', 'safety lock', 'safety latch例句：1. The safety-catch on the door is easy to operate.（门上的安全扣很容易操作。）']
例句：
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1. The safety-catch on the door is easy to operate.
门上的安全扣很容易操作。
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2. The child was safe in his mother's arms because of the safety-catch.
孩子被妈妈紧紧抱在怀里，因为安全扣起作用了。
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3. The car had a safety-catch that prevented it from rolling over.
这辆车有一个安全扣，防止它翻车。