Adam Smith said that prosperity depends on the rule of law, peace and low taxes.
亚当·斯密说繁荣取决于法制的规则，和平以及低水平的税收。
2
For example, as for the food prices, the general rule is that the price is low in fall and high in spring.
比如就粮价而言，一般的规律是秋季粮食价格低，春季粮食价格高。
3
Perhaps, the tip might be regarded as the most important underlying rule in America. The bosses of the restaurants will prefer to offer a low pay to the doormen and the waiters.