我的使命很简单：在沃尔玛检查100件在售商品，记下每件商品的生产国，然后计算出中国商品对美国商品的比率。
My mission is simple: Examine 100 items for sale at Wal-Mart, record the name of the country where each is made, and then calculate the Chinese-versus-American ratio of merchandise.
用大量商品和服务的价格来计算，这个比率就更能反映经济体之间的对比。
Calculated using a large basket of goods and services, this ratio allows for a more consistent comparison of economies.
用大量商品和服务的价格来计算，这个比率就更能反映经济体之间的对比。
Calculated using a large basket of goods and services, this ratio allows for a more consistent comparison of economies.
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