副词
中文翻译：以前
同义词：
['before', 'previously', 'prior to例句：1. She had visited the museum previously.（她之前去过博物馆。）']
例句：
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1. She had visited the museum previously.
她之前去过博物馆。
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2.They had dinner previously.
他们之前吃过晚饭。
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3.The event took place previously.
这个活动是之前举行的。