汉语翻译
n. 开凿者, 开凿机, 挖土机【医】 挖器, 剜器
英语解释：
名词 excavator:
- a workman who excavates for foundations of buildings or for quarrying
- a machine for excavating同义词：power shovel, digger, shovel
详细解释：
ex.ca.va.tor
n.（名词）One that excavates, especially a backhoe.挖掘者，挖土机：挖掘的人或装置，尤指反向铲挖土机
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