Norgesterone
[化] 诺孕酮
🗣️ 情景例句
This has been a hard course for me.
这门课对于我来说很难。
My brothers must help with the house work at home.
我的兄弟在家里必须帮忙做家务。
I'm calling to confirm our luncheon appointment.
我打电话来，是想确定一下我们约好吃饭的事。