名词
中文翻译：链条
同义词：
['chain', 'link', 'pin', 'linkage例句：1. The lower chain of the machine is broken.（机器的下链断了。）2. The workers are tightening the lower chain on the conveyor belt.（工人们正在给输送带的下链紧固。）3. The lower chain was a crucial part of the puzzle.（下链是这个谜题的关键部分。）']
例句：
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1. The lower chain of the machine is broken.
机器的下链断了。
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2. The workers are tightening the lower chain on the conveyor belt.
工人们正在给输送带的下链紧固。
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3. The lower chain was a crucial part of the puzzle.
下链是这个谜题的关键部分。