Anyway, swimming is a joyful activity in the hot summer.
无论如何，游泳是一个快乐的活动在炎热的夏天。
Research on human activity is one of hot topics now.
视频中人的行为活动研究是当前的一个热点。
Anyway, swimming is a joyful activity in the hot summer.
不管怎么说，游泳在夏天是一项快乐的活动。
Anyway, swimming is a joyful activity in the hot summer.
不管怎么说，游泳在夏天是一项快乐的活动。
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