名词
中文翻译：Unknown
同义词：
['fore-mentioned', 'mentioned before', 'previously mentioned']
例句：
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1. Themeeting will be held before the presentation of the report.
会议将在报告提交之前举行。
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2.Before we start, let's go over the plan again.
在我们开始之前，让我们再复习一下计划。
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3. He mentioned before that he would be late.
他事先提到他会迟到。