名词
中文翻译：关节故障
同义词：
['joint breakdown', 'joint malfunction']
例句：
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1.The car's brakes failed due to a faulty joint.
由于一个关节故障，汽车的刹车失灵了。
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2.After years of use, the old bicycle's joints started to fail.
经过多年的使用，旧自行车的关节开始失效了。
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3.The engineer found that the joint in the machine was the source of the problem.
工程师发现机器中的关节是问题的根源。