Periostotome
[医] 骨膜刀
🗣️ 情景例句
The global economy helps make the world smaller and smaller.
在全球经济的推动上，世界变得越来越小。
Once an opportunity slips away, it is gone for good.
机会一旦错过，永远不会再来。
You will find that people will help you if you are ready to help them.
你会发现，如果你乐于帮助别人，别人也会帮助你。