Yet wireless communications in these areas are advancing rapidly at a time when the mobile-phone industry is approaching saturation point in rich countries and the average revenue per user is sagging.

然而，当移动电话产业在发达国家一度接近饱和，而且从每位用户取得的收入开始下跌的时候，无线通讯在这些地区依然飞速发展。

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Yet the risk of America and other rich-world countries slipping into recession again is real.

然而美国和其他发达国家再次陷入衰退的风险还是存在的。

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Yet workers' share of the cake in rich countries is now the smallest it has been for at least three decades (see chart 5).

然而在富国，工人们从中得到的好处恐怕是至少在这三十年来最少的。

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Yet the record of foreign deals in rich countries is not good.

ECONOMIST: Electricity

Yet the opposite has happened in America, Britain and other rich countries where inequality has risen over the past 30 years.

ECONOMIST: The poor like taxing the rich less than you would think

Regardless of their environmental benefits, alternative energy supplies have not yet proved cheap or abundant enough to wean the rich countries from their oil addiction.

FORBES: Magazine Article