level of income造句

1、The level of income and living has a great deal of advanced.
经济收入与生活水平得到极大提高。

2、Most of Africa is urbanizing at a lower level of income than other regions of the world did.
和世界其他地区相比，非洲大多数地区的城市化进程是在一个较低的收入水平上进行的。

3、The level of income that placed households in higher or lower groups was not clear.
高收入和低收入人群对家庭的资金投入水平还不清楚。