Methylnorethindrone
18-甲炔诺酮
🗣️ 情景例句
It's too soon to know for certain.
现在还太早， 不知道确切情况 。
I ought to be on time.
我应该准时到。
What are you going to give our art teacher for Teachers' Day?
教师节你打算送什么礼物给我们的美术老师？