精选优质文档-倾情为你奉上阅读与表达（1）If you do not use your arms or legs for a long time, they become weak. When you start using them again, they slowly become strong again. Everybody knows that. But many people do not know that memory works in the same way. When someone says that he has a good memory, he really means that he keeps his memory in practice by using it. When someone else says that his memory is poor, he really means that he does not give it a chance to become strong. If a friend says
