我们只是一种不同类型的国家。
为了使分析简化,我们将把整个世界归纳为两个不同类型的国家——一个是低收入的墨西哥,另一个是高收入的美国。
To simplify the analysis, we shall aggregate the whole world into two stylized countries, a low-income Mexico and a high-income United States.
通常你可以考虑购买两种不同类型的健康保险:国际旅行保险和你将要去的国家的学生保险。
There are often two different types of health insurance you can consider buying: international travel insurance and student insurance in the country where you will be going.
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