M-f
[医][=(male/female)ratio]男女比率，男女比例
🗣️ 情景例句
but they probably had other things on their minds.
但他们也许还有其他的事想要做。
My sister was born in nineteen thirty-eight.
我的妹妹是一九三八年出生的。
The play may begin at any moment.
戏随时都有可能开始。