Periosteous
[医] 骨膜的
🗣️ 情景例句
Help me get this stuff out of the car.
帮我将这些东西拿下车子。
All our work was in vain.
我们白干了一场。
If you learn even a little English, you will find it usedful after you leave school.
假如你哪怕只是学一点英语，毕业后，也会发现它是有用的。