One of government's primary duties is the redistribution of income, so that the better off can help the worse off out of poverty.
政府的主要职责之一就是收入的重新分配，这样富裕的人能帮助贫穷的人摆脱贫困。
《柯林斯英汉双解大词典》
2
Her income was barely enough to maintain one child, let alone three.
她的收入养活一个孩子几乎都不够，更不用说三个了。
《牛津词典》
3
Though Andrea kept her job as a school bus driver, she knew that they couldn't pay their bill and support their youngest of five children, Zack, age nine, on oneincome.