Cfu
abbr. colony-forming units 菌落形成单位
🗣️ 情景例句
Be careful, I think the neighbors have been spying on us.
小心点，我觉得我们邻居一直在窥视我们。
I asked him to pay, but he wouldn't.
我请他付账，但是他不肯。
Yes, sir?
什么事，先生？