excavation

• 名词，指挖掘或移除土壤、岩石等材料的过程或结果，常用于建筑、考古或采矿等目的。也可指挖掘形成的坑洞或沟渠。

A noun referring to the process or result of digging out and removing earth, rock, or other materials from the ground, often for construction, archaeological, or mining purposes.

1. Archaeological diggingB2formalscientific

   The process of systematically digging and removing earth to uncover buried remains, such as artifacts or structures.

   发掘

   • The excavation of the ancient city revealed a complex network of streets.
   • Archaeologists began a new excavation at the site of the Roman villa.
   • The excavation team carefully documented each layer of soil.

   同义词digdigging

2. Construction diggingB2formaltechnical

   The process of digging a hole or trench in the ground for building foundations, tunnels, or other structures.

   土方开挖

   • The excavation for the new building's foundation took two weeks.
   • Heavy machinery was used for the excavation of the subway tunnel.
   • The construction crew completed the excavation ahead of schedule.

   同义词cuttingdiggingearthwork