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“ITHIRST”Eachdaywater-relateddiseaseskill3,900oftheworl...
问题详情:“ITHIRST”Eachdaywater-relateddiseaseskill3,900oftheworld’schildrenAcrosstheworld,1.1billionpeoplehavenoaccesstocleandrinkingwater.Morethan2.6billionpeoplelackbasicsanitation(卫生设备).Theco...