By used books. They have the same words as the new ones. Also libraries.
购买旧书，它们的词与新词相同，也可以去图书馆。
货币政策中的时间不一致性问题出现在政策制定者一旦经济主体形成预期后，就有动机偏离他们宣布的政策。
I know you've heard it a thousand times before. But it's true-hardwork pays off. If you want to be good, you have to practice, practice, practice.
The best way to find yourself is to lose yourself in the service of others.
经济学的奇妙任务是向人们展示，他们对自己想象中能够设计的东西知之甚少。