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。
Finally, let's think about the low-income groups in the city.
最后，让我们想想低收入群体在城市。
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。
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。
The high price cause the decline of living standard of low income groups.
物价高导致低收入阶层生活水平下降。
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。
The two groups were similar with respect to income and status.
这两组在收入和地位方面是相似的。
The high income group consumed more energy, protein and fat than the poorer groups did.
高收入组的能量、蛋白质和脂肪的消耗量比低收入组高。
So charity groups often hold food drives to collect food for low-income families.
因此，慈善组织经常举办食物募捐活动为低收入家庭募集食物。
So charity groups often hold food drives to collect food for low-income families.
因此，慈善组织经常举办食物募捐活动为低收入家庭募集食物。
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