excavating例句
They are
excavating a tunnel through the hill.
他们在挖一条穿山隧道.
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.
It's a plentiful treasure house of intelligence which is worth
excavating continuously. "
它是一笔值得大力发掘的精神财富.