Inthelastseveraldecades,ourearthhasbeenextremelypolluted,suchasairpollution,waterpollution,noisepollutionandsoon. Inrecentyears,theextremeweatherbecomesmoreandmorefrequent.Wintergetscolderandsummerbecomeshotteranditrainsmorefrequently.Allofthesewarnusthatprotectingtheenvironmentisaseriousandemergentevent.Asourgeneralpeople,weshouldbuildproperlifestyle.Weshouldpayattentiontowaterandligh (共 848 字) [閱讀本文] >>