law of one price

例句：

1. 1. The law of supply and demand dictates that the more goods are available, the lower their prices will be.
   供需法则决定了商品越多，其价格越低。
2. 2. The law of market equilibrium suggests that when two products have the same demand, they will sell at the sameprice.
   市场均衡法则表明，当两种产品的需求相同时，它们将以相同的价格出售。
3. 3. In a competitive market, businesses must adhere to the law of supply and demand to ensure their profitability.
   在竞争激烈的市场中，企业必须遵守供需法则以确保盈利。