Menalgia
[医] 痛经
🗣️ 情景例句
I am in the 7th grade.
我是七年级。
How often do you eat out?
你隔多久在外面吃一次饭？
It's the library's. Please be more careful from now on!
“是图书馆的书。从现在起请你倍加小心！”