dumb as a stump--------呆若木鸡(俚语)
英文释义
(SLANG) Describing the condition of being extremely stupid.
例句
Some of the questions I was asked in my job interview yesterday were so difficult that I felt dumb as a stump when I attempted to answer them.
昨天的求职面试有些问题实在太难,我在回答的时候呆若木鸡。
adv. 极其,非常