- 问题详情:Swimmingisverypopularintheworld.Peoplelikeswimminginsummer,evenintheotherthreeseasons.Watermakespeoplefeelcoolandswimmingmakespeoplekeepfit.Ifyouswiminawrongplace,itmaynotbesafe.Alotofpeoplediedwhentheywereenjoyingthemselvesinthewater,andmost...
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