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
What's it for?
是做什么用的？
He always finds fault with everything.
他总是找任何事情的毛病。
If it were gentle, only the more unstable rods fell.
如果地震轻微，只有不稳定的木棒倒下；