每个故事都有开始、中间和结尾,但不一定是这个顺序。
In international trade, a country should specialize in the production of goods for which it has a comparative advantage, and trade with other nations to maximize overall economic welfare.
每一本书都是作者与读者之间的一场对话。
我对中间空间感兴趣,事物在那里汇聚的地方。