jackhammer
n. 手提钻
近义词：pneumatichammer，airhammer，
英英释义
Noun
- a hammer driven by compressed air
例句
用作名词(n.)
- I talk to my friend and someone repairing the road behind us starts up a jackhammer.我和朋友说话，而某人在我们身后正用手提钻在修路。