名词
中文翻译：铰链
同义词：
['pivot', 'hinge', 'joint', 'pivot point']
例句：
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1. The door is held closed by a metal hinge.
这扇门是由金属铰链固定关闭的。
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2. The car's engine is connected to the transmission with a hinge.
汽车的发动机通过一个铰链连接到变速器上。
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3. The old clock had a wooden hinge that broke when it fell over.
旧时钟有一个木制的铰链，当它倒下时断了。