ThereisanoldChinesesaying,"Ifsomeonegivesyoualittledr...
問題詳情： ThereisanoldChinesesaying,"Ifsomeonegivesyoualittledropofwater,youshouldreturnaspringofwater."Thatmeansifsomeonehelpsyouabit,youshouldrememberitandthankthemgratefully(感激的)inreturn.Wes...