be fed up by释义:

受够了

例句:

In some countries, yields from rain-fed agriculture could be reduced by up to 50% by 2020.

至2020年,部分国家依靠雨水灌溉的农业生产可能最高减产50%。

be fed up with释义:

对…感到厌烦

例句:

Actually a lot of things me very be fed up with present oneself!

其实很多事情我都很讨厌现在的自己!