jackhammer
US /ˈdʒækˌhæm.ɚ/
UK /ˈdʒækˌhæm.ər/
名词
手提钻, 风镐
a portable percussion drill operated by compressed air, used to break up rock, concrete, and other hard materials.
示例:
•
The construction crew used a jackhammer to break up the old pavement.
施工队用手提钻凿开旧路面。
•
The loud noise of the jackhammer echoed through the street.
手提钻的巨大噪音在街上回荡。