excavating

n.挖掘；挖取

动词excavate的现在分词形式.

Those workers were employed in excavating the foundations of the building. 那些工人忙于挖掘建筑物的基础。

After excavating some ceramic pieces from the site - now farmland - they confirmed a Roman villa once stood there. 这个地方现在是一处农田，专家们在挖掘到里头一些陶器的残骸后确认，这里过去确实存在著一个罗马村庄。