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
How can I thank all of you?
我该如何感谢你们呢？
His visit was well timed.
他的访问正合时宜。
Would you put it on, please?
请您把帽子戴上好吗？