Young males, whether simian or human, prefer toys that can be used actively or propelled in space, and which afford greater opportunities for rough play.

年幼的雄性，不论人类还是猴子都喜欢那些有动力、能运动的玩具，而这些也给他们更多机会做粗犷的活动。

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They were penalized for too much rough play.

他们因在比赛中过于粗野而受罚。

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A yellow card system will be used to monitor unsportsmanlike behavior, rough play and improper conduct.

黄牌警告制度是对那些没有运动精神的行为，粗野行为和不恰当行为的一种监督。

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If I had kept the video quiet and a player suffered a serious injury because this type of rough play was allowed to continued, I would have deeply regretted it.

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Unless he gets ready to play rough against his opponents, he is going to get clobbered.

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Rule No. 1 when dealing with Oracle Chief LarryEllisonLarry Ellison: You can play rough, but you'd better not screw up.

FORBES: Magazine Article