Most children in America eat(potato) every day. But many(child) do not know which part of the potato is(good) for food. Take a knife and cut from the middle of the potato a piecethin as paper.
Hold the pieceyour eyes and the light. You will see that the potato(have) a skin, an outside rim (边缘) and(a) inside part. The outside rim is the best of all. But we often throwaway. What's more, the skin is better the inside.you can't eat the whole potato, eat the outside and leave the inside.
