介词
中文翻译:在
同义词:
['in', 'before', 'prior to']
例句:
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1. He will not be able toattend the meeting before it starts.
他将在会议开始前无法参加会议。
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2. Theproject was completed before thedeadline.
该项目在截止日期前已经完成。
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3. Before you start your work,make sure you have all the necessary materials.
在你开始工作之前,确保你有所有必要的材料。