Nitrobacteria
n. 硝化细菌
🗣️ 情景例句
I'd like to say something first.
我想先说几句话。
Generally speaking, a contract cannot be changed after it has been signed by both parties.
一般来讲，合同一经双方签订就不得更改。
The Turners are going on a train. The conductor is coming round.
特纳一家人在火车上。列车员走过来。