形容词
中文翻译：外来的
同义词：
['unnecessary', 'extraneous']
例句：
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1. The extraneous factor ofthe new policy has caused some concern amongthe employees.
新政策的非必要因素引起了一些员工的担忧。
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2. The extraneous noisefrom the construction site disrupted our work.
工地的非必要噪音干扰了我们的工作。
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3. The extraneous details were notrelevant to the main topic of the meeting.
会议的主要议题与这些无关的细节无关。