We keep digging out dirt.
and excavating the rock.
until we are down as far as we want to go.
Then we move over and do it all again.
until finally, we have all the dirt and rock dug out.
We keep digging out dirt.
and excavating the rock.
until we are down as far as we want to go.
Then we move over and do it all again.
until finally, we have all the dirt and rock dug out.