1. She's in the dark about how this machine works。
她根本不知道该怎么操作这个机器。
2. He is a stranger to our language。
他完全不懂我们的'语言。
3. It is all Greek to me。
我对此一窍不通。
4. When it comes to German, I know nothing。
谈到德语，我一窍不通。
5. The ideas she espoused were incomprehensible to me。
她信奉的这些观念对于我来说都很难理解。
6. That computer nerd is a total social misfit。
那个只会玩电脑的呆子对人情世故一窍不通。
7. For all my advice she was never the wiser。
虽然我全力指点，她还是一窍不通。
8. Mathematics is a closed book to me, I'll never understand it。
我对数学一窍不通，从来都搞不懂。
9. Golf is one of his blind spots and he's proud of it。
他对高尔夫球一窍不通，但对此他还感到挺自豪的。
