air bone drill

例句：

1. 1. The air is fresh and clean here.
   这里的空气清新干净。
2. 2. Air travel is becoming more popular.
   航空旅行越来越受欢迎。
3. 3. The airplane was flying high in the sky.
   飞机在高空飞行。
4. 1.She had to remove her broken bone.
   她不得不取出她的骨折。
5. 2. The doctor advised him to take care of his bones.
   医生建议他照顾好他的骨头。
6. 3. The old man's bones were weak and brittle.
   老人的骨头很脆弱。
7. 1. They are using a drill to make holes in the wood.
   他们正在用钻子在木头上打孔。
8. 2. He is drilling for oil in the deep sea.
   他在深海中钻油。
9. 3. The engineer needs to drill a hole through the wall.
   工程师需要通过墙壁钻孔。