ReadWriteQuiz
Chinese dictionary
derogexpose oneself to ridicule; give an expert cause for laughter
他们说年轻人的作品幼稚,贻笑大方。
They say that young writers are childish and will make a fool of themselves.
我对此知道的很少,乱发议论,岂不贻笑大方。
I know little about this and don't want to make a fool of myself by making frivolous comments.