power rule

例句：

1. 1. The power rule of the market is that supply and demand determine prices.
   市场的权力规则是供需决定价格。
2. 2. The power rule of the economy is that free markets are more efficient than government-regulated ones.
   经济的权威规则是自由市场比政府监管的市场更高效。
3. 3. The power rule of the law is that it should be applied equally to all parties involved.
   法律的权威规则是应该对所有参与方平等适用。