名词
中文翻译：关节
同义词：
['joint', 'pivot', 'hinge例句：1. The acrox is the key to unlocking the door.（这个关节是打开门的关键。）2. The acrox of the arm is where the tendons attach.（手臂的关节是肌腱附着的地方。）']
例句：
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1. The acrox is the key to unlocking the door.
这个关节是打开门的关键。
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2. The acrox of the arm is where the tendons attach.
手臂的关节是肌腱附着的地方。
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3.The acrox of the knee is responsible for supporting the body weight.
膝盖的关节负责支撑身体重量。