友情提醒：点击
，可以收听真人发音
，可以收听真人发音 
小测验：选择正确的单词
- 论坛新贴
excavator ['ekskəveitə]
基本释义
- n. 开凿者,打洞机,开凿机
英英解释
2个名词解释
- a workman who excavates for foundations of buildings or for quarrying
- a machine for excavating
[同] digger, excavator, power shovel, shovel