2018年12月1日 星期六

not know the first thing about

not know the first thing about (someone or something) 

=>To not know anything about someone or something.

I don't know the first thing about computers, so you'll have to explain this to me really slowly. 

I don't know the first thing about flying an airplane. 

She doesn't know the first thing about John. 

I'm afraid I don't know the first thing about car engines.

https://idioms.thefreedictionary.com/not+know+the+first+thing+about

https://dictionary.cambridge.org/zht/%E8%A9%9E%E5%85%B8/%E8%8B%B1%E8%AA%9E-%E6%BC%A2%E8%AA%9E-%E7%B9%81%E9%AB%94/not-know-the-first-thing-about-sth