他真是一个痴呆的人。
tā zhēnshì yígè chīdāi de rén 。
He is truly a stupid person.
不要对他太苛刻,他其实只是有点痴呆。
búyào duì tā tài kēkè , tā qíshí zhǐshì yǒudiǎn chīdāi 。
Don't be too harsh on him; he is actually just a bit stupid.
这本书的内容太痴呆了,我看不下去。
zhè běn shū de nèiróng tài chīdāi le , wǒ kànbùxiàqù 。
The content of this book is too stupid; I can't continue reading it.