Nitrobacteriaceae
[医] 硝化菌科
🗣️ 情景例句
Ah. She's out.
啊。她出去了。
He alone is happy who commands his passions.
只有控制感情的人，才会幸福。
I've got a problem and as I don't know what to do I thought I'd write to you and ask for your advice.
我有一个问题，因为我不知道该怎么办。我想我最好写信给你，征求你的意见。