horseplay

Horseplay is OK at work as long as are off the clock.

马球是只要你的工作确定的关闭时钟.

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After the horseplay by the wicked students, the classroom floor was strewn with crumbled chalk dust.

那班顽皮学生闹著玩儿,捏碎不少粉笔,过后, 教室地板上撒满了粉笔灰.

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