Denitrogenate
除氮
🗣️ 情景例句
Hello, who's speaking, please?
喂， 谁在讲话？
I am ready to sign the agreement.
我已经准备好了签合同。
The children were running to move the bag of rice when they heard the sound of a motorbike.
孩子们跑去搬那包大米，这时他们听到摩托车的声音。