M-f
[医][=(male/female)ratio]男女比率，男女比例
🗣️ 情景例句
Let's just all calm down,
让我们全都冷静下来，
I hesitate to ask you, but will you lend me some money?
也许我不该问你，你能借我一些钱吗？
Don't you think it necessary to have a close study of the contract to avoid anything missing?
你不觉得应该仔细检查一下合同，以免遗漏什么吗？