When you put a small seedling in, the roots are not deep enough to go into that water reservoir, so we need to bring the water up to the plant."

VOA: special.2011.06.14

They ride high-speed elevators that go deep inside the dam.

VOA: special.2009.08.12

A straggling few got up to go in deep despair.

VOA: special.2011.04.04