two groups of
网络释义
two groups of time words 两组时间词
two groups of drama conflicts 两组戏剧冲突
two groups of matrix inequalities 两组矩阵不等式
effect of two groups 两组疗效
双语例句原声例句权威例句
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If vaccine supplies are limited, then the committee says two groups of children should be vaccinated before other children.
VOA: special.2009.08.05
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You take two groups of kids and you ask them to do something like draw pictures.
你找来两组小孩,叫他们做一件事，例如画画。
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A studio of three hours' lecture in a large lecture hall, and two hours of recitation in groups of thirty.
在一个大的讲堂的教室里,讲三个小时讲座，并以三十人为一组,进行两小时背诵。
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