1. It seems almost gratuitous to be posing such questions in a country where income levels have increased fivefold in half a generation.
半代的时间内，对一个收入水平已经增长到五倍的国家提出这样一个问题好像是毫无道理的。
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2. The number of very hot days is forecast to increase fivefold by 2100.
据预测，到2100年，极热天气的数量将增加五倍。
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3. Although much remains to be done, developing countries have become much more affluent, with a fivefold increase in real per capita income between 1950 and today.
尽管还需要很多努力，但发展中国家已经越来越富足，1950年到目前为止人均收入增长了五倍。
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4. The amount of plastic produced around the world increased fivefold between 1976 and 2008, and the amount thrown away by Americans went up fourfold between 1980 and 2008.
9. And yet, a week later on March 24th, JPMorgan Chase raised its offer fivefold and other elements of the deal, brokered by the Federal Reserve, were amended.
10. In the future, Shenhua hopes to expand production fivefold, largely using coal from the nearby Shangwan mine.
神华希望在未来将产量翻五倍，并大量使用邻近的上湾煤矿生产的煤。
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11. About 29 percent of children under 18 now live with a parent or parents who are unwed or no longer married, a fivefold increase from 1960, according to the Pew report being released Thursday.
12. Men who often used these coping techniques had a two to fivefold higher risk of developing heart disease than those who were more confrontational at work, the study showed.
13. Men who often used these coping techniques had a two to fivefold higher risk of developing heart disease than those who were more confrontational at work, the study showed.
