Norbolethone
[化] 诺勃酮; 二乙诺酮
🗣️ 情景例句
Yes. Have the people arrived?
是的。客人来了吗
This is a rather old house. It needs painting.
这房子挺旧的，得刷一下才行。
What makes you say so?
你怎么这么说？