on one's income是什么意思(为什么用介词on)

问题描述

Critics point out that the prince, on his income, should be paying tax.

老师：早上好！on his income，这个短语在这里怎么理解？尤其是为何这里要用介词 on 呢？谢谢。

老师答疑

刘老师：

Critics point out that the prince, on his income, should be paying tax.

【翻译】批评者们指出，根据其收入王子应该纳税。

on 可以表示“凭着，依靠，根据；以…为基础”之意。例如：

Sure he can swing a new car on his income.  按他的收入，他是买得起一辆新车的。

I had to live on bread and water when I was a student.  我上大学时只能靠粗茶淡饭过活。

We depend on the radio for news.  我们靠收音机听新闻。

You can't rely on his assistance.  你不能指望他能帮助你。

The story is based on historical facts.  这个故事是以历史事实为根据的。