求翻译：近年来，发展中国家的贸易条件更加恶化，出口收入锐减，生产投资萎缩，债务负担沉重，甚至连续多年出现资金从穷国向富国倒流的现象。是什么意思？

4 In recent years, the terms of trade of developing countries is exacerbated by the sharp drop in export earnings, shrinking production and investment, heavy debt burden, even for many years the phenomenon of reflux of capital from poor to rich countries.

4.- In recent years, terms of trade of developing countries, export earnings have worsened sharply reduced production, investment, debt burden, or even for many years the funds from the poor countries to rich countries in the back.

4. In recent years, the developing nation trade condition worsened, the exportation income sharp decline, the production investment withered, the debt burden was heavy, even many years appeared the fund continuously from the poor country the phenomenon which flowed backwards to the rich country.

4. in recent years, deteriorating terms of trade of developing countries more, sharp drop in export earnings, investment contracted, a heavy debt burden, even for many years a phenomenon of capital from poor countries to rich countries back.

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