n.挖掘，开凿，开凿的洞穴（或山路等），（发掘出来的）古迹
Our new habitation was an excavation made in the earth.
我们的新居是在地里挖出的一个洞。
The bad weather has hung up the work of excavation.
天气不好耽误了挖掘工作.
The excavation of the buried city took a long time.
发掘埋在地下的城市花了很长时间.
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