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首页 - 英汉词典 - B字开头的单词或词组 - be on the ball

英语解释

be on the ball

汉语翻译

在精力充沛地行动, 知情, 内行

be on the ball英语解释

动词 be on the ball:

be well-informed
同义词：know the score, be with it, know what's going on, know what's what

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