Nitrobacteria
n. 硝化细菌
🗣️ 情景例句
This is show business.
而今天这个却是演艺事业。
If you wish for peace, be prepared for war.
想要和平，必须备战。
By the way, I came into this classroom last Saturday morning, and it was not as clean as usual.
顺便提一句，上星期六上午我来到这个教室时