Levonorgestrel
[医]乙羟基二降孕甾烯炔酮, 左旋-18-甲基炔诺孕酮
🗣️ 情景例句
We know.
我们知道。
How long have you lived here?
你住在这里多久了？
They finally found a small gold coin which was almost worthless.
但最后找到的是一枚几乎一钱不值的小金币。