「一竅不通」，意思是指沒有一竅是貫通的，比喻一點兒也不懂（be utterly ignorant of）。可以翻譯為「it's all Greek to somebody」，「all Greek to me」是英文慣用語，比喻「something is not understandable」。
例句：
你弄懂這些說明了嗎？我根本一竅不通！Can you make sense of these instructions? It's all Greek to me!
對不起，我不知道你說的是什麼，我對那一竅不通。Sorry, I don't understand what you said. It is Greek to me.
Editor: Jade
來源：chinadaily.com.cn