“钻孔”造句

钻孔已塞上了塞子。
A plug had been inserted in the drill hole.

钻头必须缓慢转动，以保证钻孔平整光滑。
The drill should be slowly rotated to ensure a clean hole.

牙医开始在那颗有问题的牙齿上挖洞，钻孔，直到最后把它补好。
The dentist commenced to dig, drill and finally fill the offending tooth.