- A city road must be broken up by jackhammers .
- He ' s behind the bricks ! jackhammer
- So they bring in a jackhammer ,
- Boy , give me the jackhammer
- A system or device for doing work , as an automobile or a jackhammer , together with its power source and auxiliary equipment
- It's difficult to see jackhammer in a sentence. 用jackhammer造句挺難的