(4) Trade to exploit comparative advantage promotes efficiency among countries, since it can make one country better off without making another worse of用比较利益进行贸易能够在各国间 提高效益,可以改善一个国家的经济状况 而不损害另一个国家的利益。 ① SInce:因为 ②i指上述情况 ③ well o:境况良好 ④ worse off: badly off的比较级◼ (4) Trade to exploit comparative advantage promotes efficiency among countries, since it can make one country better off without making another worse off. 利用比较利益进行贸易能够在各国间 提高效益，可以改善一个国家的经济状况 而不损害另一个国家的利益。 ◼ ① since:因为 ◼ ② it 指上述情况 ◼ ③ well off:境况良好 ◼ ④ worse off:badly off 的比较级