ThecelebrationofEarthDayonApril22ndbeganintheUnitedSta...
問題詳情: ThecelebrationofEarthDayonApril22ndbeganintheUnitedStatesin1970.EarthDayisaperfecttimetoreflectaboutwhatyouaredoingtohelpprotecttheenvironment.Therearemanywaysthatyoucancelebratealoneandwith...