Fermilab
abbr. Fermi National Accelerator Laboratory <美国>费米国家加速器实验室
🗣️ 情景例句
Never know what?
说不定什么？
I'm sorry,but both of them are busy right now.
很抱歉他们现在很忙。
Oh! Well, for that, you'd better find an English pen friend.
哦！那你最好为此找一个英文的笔友。