【導(dǎo)讀】Weshouldn'twastewater.Weshouldsavewater.Whatshould(應(yīng)該)wedo?theeath?No,thereisn't.water?needswater.dropofwater.環(huán)境)?Canyouhelpme?wastewater.Whatshouldwedo?ofwater.trees.fresh.ofcars.animals.Whatshouldwedo?Weshouldn'tlitter.wastewater.killwildanimals.litter.plantmoretrees.5.Weshouldn'tkillwildanimals.6.Weshouldn'tlitter.7.Weshouldn'twastewater.Let'sguess(猜一猜).