英语词汇“be on the ball”的释义、用法及例句翻译-英汉例句词典

词汇	be on the ball
例句	With so many intelligent students, the teacher must always be on the ball.班上有那么多聪明学生，老师上课时必须时刻随机应变
随便看	unsympathetic unsystematic untainted untalkative untamed untangle untangled untapped untasted untaught untaxed untenable untended untensed untenured untested unthinkable unthinking unthinkingly untidier untidily untidiness untidy untie untied

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