Nitrobacteraceae
硝化桿菌科
🗣️ 情景例句
It's hard for some older people to take all that noise.
一些老年人没办法忍受那些噪音。
It is an evil sign to see a fox lick a lamb.
狐狸舔羔羊，不是好迹象。
Oh, yes, it is.
哦，对，是我的杯子。