Normuscone
(=cyclopentadecanone)环十五酮
🗣️ 情景例句
Oh, Miss Li. This is Tom. I didn't recognize your voice.
噢，李小姐。我是汤姆。我没听出你的声音。
How long has he been with that company?
他在那家公司多久了？
I'd like to congratulate you very much. That was a wonderful concert.
衷心祝贺你。这场音乐会真是太好了。