An apple a apple要解释为苹果吗原句是An apple a day keeps the doctor away.

An apple a apple要解释为苹果吗原句是An apple a day keeps the doctor away. an.Apple.a. an apple a day a red apple或者an red apple 为什么是an apple a day而不是a day an apple 请问为什么苹果和鸡蛋要用,an apple、an egg 而不是a apple、a egg An Apple a Day 歌词 a apple juice 对 还 是 an apple juice 对 是a apple tree还啊an apple tree? 是a apple tree还是an apple tree? half an apple 还是a half apple还是都可以 首字母填空what apple is not an apple?A What a delicious apple还是What an delicious apple? 别的可数名词前面都加a,为什aPPle前面要加an呢 关于an apple a day,keeps the doctor away到底是an apple a day an apple one dayone apple a day还是one apple one day a man eats an apple eat为什么要加s 为什么是a apple pie apple