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

yī qiào bù tōng

Idiom

Chain

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Examples2 available

With data, he's a genius. But with code -- complete numbskull.

在处理资料上，他很有天赋。但编写代码的话，只能说一窍不通。

It's all Greek to me.

我对此一窍不通。