植树节(Tr-planting Day)today is tr-planting day. w wnt to plant trs in daning grnland. as soon as w arrivd, w bgan to work.som wr digging hols, som wr planting and othrs wr watring.w all know trs ar vry usful to man. growing trs mans saving man himslf. w all workd vry hard. whn th sun wnt down, w cam back hom. although w wr vry tird, w flt vry happy.