M-f
[医][=(male/female)ratio]男女比率，男女比例
🗣️ 情景例句
I used to love to go to the Metropolitan Museum of Art.
我过去很喜欢去大都会美术馆。
Frustrated dog.
好颓丧的狗。
its movement would be recorded in ink upon its surface.
纸的表面就会用墨水记录下地板运动的情况。