一竅不通 [ㄧ ㄑㄧㄠˋ ㄅㄨˋ ㄊㄨㄥ; yi1 qiao4 bu4 tong1] lit. doesn't (even) enter a single aperture (of one's head) I don't understand a word (idiom) it's all Greek to me ◄ ►