Right, got that. They also want to know about his monthly earnings.

好的，知道了。他们还想知道这个学生的月薪。

That means a usual 40-liter tank of gas costs more than a state-worker's average monthly earnings.

这意味着一箱普通的40升汽油的价格比一名国家工作人员的月平均收入还要高。

When her employers cut her monthly earnings by 50 percent she decided to open the clothing business.

当她的老板把她的月工资减半时，她决定开一家服装公司。

But in Kenya and South Africa, the figure is significantly lower amounting to less than five percent of average monthly earnings.

手机费用如此高的原因是缺乏市场竞争。

She and her husband are living off savings and his $480 monthly earnings and, like others, are considering moving to a different country.

她和丈夫靠储蓄和每月480美元的收入生活，他们和其他人一样，正在考虑搬到另一个国家。