1. She's in the dark about how this machine works.
她根本不知道該怎么操作這個機器。

2. He is a stranger to our language.
他完全不懂我們的語言。

3. It is all Greek to me.
我對此一竅不通。

4. When it comes to cooking, I know nothing.
說到煮飯，我一竅不通。
說到什么：when it comes to /when it refers to
5. The ideas she espoused were incomprehensible to me.
她信奉的這些觀念對于我來說都很難理解。

6. That computer nerd is a total social misfit.
那個只會玩電腦的呆子對人情世故一竅不通。

7. For all my advice she was never the wiser.
雖然我全力指點，她還是一竅不通。

8. Mathematics is a closed book to me, I'll never understand it.
我對數學一竅不通，從來都搞不懂。

9. Golf is one of his blind spots and he's proud of it.
他對高爾夫球一竅不通，但對此他還感到挺自豪的。