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- in or to the area behind the stage in a theatre, especially the wings or dressing rooms在（剧院）后台：
I went backstage after the show.
表演结束后我去了后台。
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- figurative in secret〈喻〉秘密地：
we planned our strategies backstage.
我们秘密地计划策略。
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- of, relating to, or situated in the area behind the stage in a theatre剧场后台的：
a backstage tour of the opera house.
参观歌剧院的后台。
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- figurative secret〈喻〉秘密的：
backstage deals.
秘密交易。