名词
中文翻译：铰链牙齿
同义词：
['hinge', 'hinge tooth', 'hinge joint']
例句：
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1.The hinge on the door is broken, so it won't close properly.
门上的铰链坏了，所以它不会正常关闭。
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2. The hinge joint of the door was loose and caused the door to stick.
门的铰链连接松动，导致门卡住了。
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3.The hinge teeth are worn out from frequent use, making the door difficult to open.
频繁使用导致铰链牙齿磨损，使得门难以打开。