Nitrobacteria
n. 硝化细菌
🗣️ 情景例句
All set for eating.
吃饭用的一切都准备好了。
He who has done ill once will do it again.
干了一次坏事的人会再干第二次。
I'm very sorry, but I can't come.
但很抱歉，我不能来。