名词
中文翻译：锁定器
同义词：
['latch', 'catch', 'fasten', 'latch bolt']
例句：
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1.The lock on the door is broken, so we need to replace it.
门上的锁坏了，我们需要更换它。
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2.The car's trunk was locked from the inside, and I couldn't open it without a key.
车的后备箱从里面锁上了，我找不到钥匙就打不开。
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3.She locked the door behind her before leaving the house.
她离开房子前把门反锁了。