Nitrosomas
亚硝酸菌
🗣️ 情景例句
I can't argue with that.
我觉得不错。
I tried to call you, but the line was busy.
我试着给你打电话，但老占线。
' I looked down and nearly fell off the ladder when I saw a policeman.
”我向下面看去。当我看清是一个警察时，差一点儿从梯子上掉下去。