Alligation
[医] 合剂求值
🗣️ 情景例句
How long does it take?
要花多久时间？
Fall sick and you will see who is your friend and who is not.
困难见友情。
That may be true, but you sold me a blouse that I can't use any more.
也许真是这样，但这是你卖给我的，现在不能穿了啊。