从发达国家到发展中国家的反向流动也在增加。
The reverse flow, from developed to developing countries, is on the rise, too.
工业用水在发展中国家还是发达国家中占59%？
Does industry use 59% of the water in developing countries or developed countries?
在某些方面，发展中国家肯定不同于发达国家。
In some respects, developing countries are definitely different from developed countries.
不幸的是，发达国家掌握了这方面的大部分知识，而发展中国家则没有。
Unfortunately, rich countries possess most of this knowledge, while developing countries do not.
不幸的是，发达国家掌握了这方面的大部分知识，而发展中国家则没有。
Unfortunately, rich countries possess most of this knowledge, while developing countries do not.
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