강물이나 침식 작용으로 인해 오랜 시간에 걸쳐 형성된 깊은 골짜기.
A deep gorge, typically one with a river flowing through it, often formed by erosion over geological time.
예문:
"The Colorado River carved the massive Grand Canyon over millions of years."
"We hiked down into the canyon floor to reach the hidden waterfall."
"Submarine canyons are found on the continental slopes beneath the ocean surface."