Methylnorethindron
甲基炔诺酮
🗣️ 情景例句
Well, it's fine if you take our picture.
你想拍我们的照，就请吧。
May I introduce you to my friend Susan?
恕我介绍一下我的朋友苏珊。
There is a new type of machine which can produce colour copies.
有一种新型的机器能够制作出彩色复印件。