介词
中文翻译：前置
同义词：
['in', 'before', 'prior to']
例句：
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1. The meeting will take place in the conference room.
会议将在会议室举行。
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2. I'll meet you at the train station before 8:00.
我将在8点前在火车站见你。
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3. He arrived before the others, which surprised everyone.
他比其他人都先到，这让大家很惊讶。