关于protectwater的内容
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protectwater学生英语作文
Waterisimportanttoalllivingthings,wecan'tlivewithoutwater.plantsandanimalscan't,either.Weallkonwthatthefreshwaterbecomeslessandlessbecauseofthewaterpollution.Butsomepeopleoftenwasteandpollutew...