principle of comparative advantage

例句：

1. 1. The country's policy on free trade is basedon the principle of comparative advantage.
   该国自由贸易政策基于比较优势原则。
2. 2. This companyhas a strong competitive advantagein this market.
   该公司在这个市场上拥有强大的竞争优势。
3. 3. The principle of comparative advantageis often used to explain why countries specializein certain industries.
   比较优势原则常被用来解释为什么国家会专门从事某些行业。