M-f
[医][=(male/female)ratio]男女比率，男女比例
🗣️ 情景例句
They rescheduled the product launch.
他们重定产品投放市场的时间表。
Nothing is impossible to a willing heart.
心之所愿，无事不成。
Excuse me. Where's the toilet, please?
请问洗手间在哪？