题目ThereisafamousEnglishsaying"Youarewhatyoueat",anditmeanswhatyouputinyourmouthwillbecomepartofyou.Manyexperts(专家)useittotellpeopleit'simportanttohaveagoodeatinghabit.Forexample,toomuchsweetfoodmakesapersonoverweight(超重).Toavoidbeingfat,kidsaretoldtokeepoffsweetfood.But,ateamofAme...