The impact of dropping birth rate on developing countries may not be immediate but disastrous.

生育率下降对发展中国家的影响可能不是立竿见影的，而是灾难性的。

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The population within these developing countries is now increasing at average growth rate of 2% annually, and the growing speed will last to the mid of next century.

这些国家的人口目前正以年均近2％的速度增长，而且预计这种增长速度将保持到下个世纪中页。

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Nowadays, all the countries in the world are developing and tapping the cultural resources, but utilization rate of our country's is low, so is Liaoning province.

时下，世界各地都在深入开发和挖掘文化资源，我国目前文化资源的利用率低，辽宁省文化资源的利用和开发情况更是不容乐观。

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African countries are experiencing the highest increase in the rate of tobacco use amongst developing countries.

BBC: NEWS | Africa | Why do we still smoke in Africa?

In developing countries with immature financial markets, a freely floating exchange rate may not be sensible because a small number of foreign-exchange trades can cause big swings in currencies.

ECONOMIST: Getting out of a fix

Unlike developing countries, which age from the bottom up because of a falling birth rate, rich countries age from the middle, adding old people with fewer workers to support them, and even fewer children to join the workforce.

ECONOMIST: Economics focus