an apple a day that's what i say .怎么翻译?

an apple a day an apple a day that`s what l An apple a day that's what l say. An apple a day that's what l say. an apple a day that`s what l An Apple a Day 歌词 An apple a day keeps the doctor away.An apple a day that’s what Isay.o_O? 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 an apple a day keeps the doctor 《an apple a day》 中文意思 An apple a day 下一句是什么? An apple a day 下一句是什么? an apple a day,后面是什么啊? An apple a day may keep aging an apple a day that's what i say .怎么翻译? It's said that eating an apple a day keeps doctors a_____. 为什么是an apple a day而不是a day an apple An apple a day keeps a doctor away是什么意思?