Kitimine
酮亚胺(类)
🗣️ 情景例句
Smoking is harmful to your health.
吸烟有害健康。
How low-class!
真低级！
No, Mrs Brown. Your son's trouble is very common these days. It happens all the time. It comes and goes very quickly. He'll get well soon.
是的，布朗太太。你儿子的毛病现在是极常见的，经常有的。它来得快，去得也快。他不久就会好的。