excavator

n. 打洞机；挖掘者；开凿者excavator详解释义 excavator n.(名词) 发掘者，挖掘者，开凿者 挖掘机，挖掘器，挖土机，挖沟机，打洞机，电铲，钻孔器，挖泥机，开凿机 Noun a workman who excavates for foundations of buildings or for quarrying a machine for excavating...