愚笨

jǔ zhǐ yú bèn

举止愚笨

imbecilic behaviour

wǒ bù zhī dào tā gàn cǐ shì shì yīn wèi wú zhī hái shì yú bèn

我不知道他干此事是因为无知还是愚笨。

I don't know if he did it through ignorance or just stupidity.

wǒ shòu bu liǎo tā yīn wèi tā tài yú bèn

我受不了他，因为他太愚笨。

I can't stand him because he's so stupid.