Periost
[医] 骨膜
🗣️ 情景例句
I said I'd give her an answer in a few days ...
我说这几天给她回答……
If it doesn't rain tomorrow, will you get a haircut?
如果明天不下雨的话，你会去剪头发吗？
We both tried to get the coins, but it was too late.
我们俩都试图把这两枚硬币拿出来，但太迟了。