Excavator
n. 开凿者, 开凿机, 挖土机\\n[医] 挖器, 剜器
✅ 同义词
📖 牛津释义
excavator
n person engaged in or machine used forexcavating 挖掘者; 挖掘机
excavators on an archaeological site 考古场地上的挖掘者
mechanical excavators 挖掘机.
🗣️ 情景例句
I'll come and give you a hand tomorrow.
我明天来帮你忙。
To marry again
再婚
Once the oxygen content of the air had risen to 25% it was ready to burn.
一旦氧气在空气中的含量达到25%，它就要燃烧。