This approach would also allow the countries to trade off gains in some commodities against the losses in others.
这种方式也会使各国能够以某些商品的收益抵消其他商品的损失。
In some commodities, such as wool and furs, it is impossible to grade and standardize, so world markets are operated by auction with buyers physically present.
有些商品，比如羊毛和毛皮，不能分等和标准化，所以世界市场通过买者亲自在场的拍卖来经营。
In some commodities, such as wool and furs, it is impossible to grade and standardize, so world markets are operated by auction with buyers physically present.
有些商品，比如羊毛和毛皮，不能分等和标准化，所以世界市场通过买者亲自在场的拍卖来经营。
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