动词
中文翻译：使成群
同义词：
['enroll', 'gather', 'bring together例句：1. The team will round up the players for the next practice.（队伍将召集球员进行下一次练习。）']
例句：
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1. The team will round up the players for the next practice.
队伍将召集球员进行下一次练习。
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2.Round up your friends and we'll go to the park together.
召集你的朋友，我们一起去公园吧。
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3. The teacher rounded up all the students in the classroom.
老师让所有的学生都坐在教室里。