这一群体还包括一些中等收入国家，如中国和尼日利亚。
This group also includes some middle-income countries, such as China and Nigeria.
发放补贴本是为了帮助穷人，但国际能源机构首席经济学家法提赫•比罗尔指出，得益于这些补贴的主要是城市里的中等及高等收入群体；贫穷的农村人很少消费化石燃料。
That supposedly helps the poor. But Fatih Birol, the IEA's chief economist, says that the subsidies mainly benefit middle-income and higher-earning urban types; the rural poor use little fossil fuel.
盖茨基金会拨出首轮启动资金2000万美元，用于资助中等以上在线课程的开发，为社区学院和低收入年轻群体量身定做网络课程。
An initial $20 million round of money, from the Gates Foundation, will be for postsecondary online courses, particularly ones tailored for community colleges and low-income young people.
美国的富裕家庭将中等和低收入群体甩在身后。
Rich households in America have been leaving both middle and poorer income groups behind.
而肥胖在美国各社会经济阶层的发生率并不平均，以中等和中等以下收入群体为最多。
Obesity does not occur evenly across all socio-economic strata in the U.S.; it is far more prevalent in middle to lower income groups.
如到2011年取消大多数公共支付项目，对中等阶层实施各种各样的休假停工，提高针对高收入群体的税收标准以及延期一年发放国家养老金。
Most public-sector pay would be frozen in 2011, various middle-class breaks would go, rich people's taxes would rise and everyone would have to wait a year longer before getting their state pension.
而肥胖在美国各社会经济阶层的发生率并不平均，以中等和中等以下收入群体为最多。
Obesity does not occur evenly across all socioeconomic strata in the U. s.; it is far more prevalent in middle to lower income groups.
而肥胖在美国各社会经济阶层的发生率并不平均，以中等和中等以下收入群体为最多。
Obesity does not occur evenly across all socioeconomic strata in the U. s.; it is far more prevalent in middle to lower income groups.
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