世界水日英語作文：Keeping Water Sources Clean
2016-07-04
Whoiswillingtodrinkthepollutedwater?Itcancauseustobeillandeventodie.Wecan'twaitforamomenttoprotectourwatersources.Thewaterweusecomesfromoceans,lakes,riversorstreams.Butmanyofthesewatersourcesarege...