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
Well, I'd better be on my way.
好啦，我该走了呢。
This man yells directions and gets sunburned.
这个人一边晒着太阳,一边在大声下达指令。
Is there any water in this kettle?
这水壶里有水吗？