名词短语
中文翻译：链中的唯一元素
同义词：
['single element of chain', 'single link in the chain', 'sole element of a chain']
例句：
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1. Theonly element of this system is its simplicity.
这个系统唯一的元素是它的简单性。
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2.The only link in the chain of success was her determination.
成功链条上唯一连接点是她的决心。
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3. The company's only element of success lies in its employees' dedication.
公司唯一成功的要素在于员工的奉献精神。