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1·The proportion of single parent families varies between different income groups.

单亲家庭比例在不同收入群中各不相同。《牛津词典》

2·There is no best parenting style or philosophy, researchers say, and across income groups, 92% of parents say they are doing a good job at raising their children.

研究人员说，没有最好的育儿方式或哲学，在不同的收入群体中，92%的父母说他们在抚养孩子方面做得很好。

3·Around the world, governments have subsidized the housing of middle- and upper-income groups.

全世界各政府都补贴过中高收入人群的住房。《柯林斯英汉双解大词典》

4·The BLS divides households into nine income groups.

劳工统计局把家庭分为9个收入群体。

5·But more striking was the uniformity among income groups.

但不同收入阶层间的一致性更加明显。

6·Better health outcomes in high income groups tell us that the answer is no.

高收入阶层更好的健康结果告诉我们，答案是否定的。

7·After previous recessions, people in all income groups tended to benefit.

在以前的萧条过后，任何收入阶层的人情况都将得到好转。

8·This has made the lives of people, particularly those low income groups more difficult.

去年下半年以来，物价上涨过快，给群众生活，特别是低收入群体带来很大的困难。

9·Rich households in America have been leaving both middle and poorer income groups behind.

美国的富裕家庭将中等和低收入群体甩在身后。

10·Recently the Chinese urban low-income groups have been the hot topic of academic research.

近年来，中国城镇居民中的低收入群体问题成为理论界研究的热点。