Jackhammer
01
手提钻, 破碎锤
a heavy-duty pneumatic or electric tool that uses rapid hammering or reciprocating motion to break up or demolish concrete, pavement, or other hard surfaces
例子
The workers used a jackhammer to break up the old concrete sidewalk.
工人们用破碎锤来打碎旧混凝土人行道。
The loud noise of the jackhammer echoed through the construction site all day.
手提钻的嘈杂声整天在建筑工地上回荡。
词汇树
jackhammer
jack
hammer
