canyon
noun [ C ] uk/ˈkæn.jən/ us/ˈkæn.jən/
峡谷
a large valley with very steep sides and usually a river flowing along the bottom
Compare: abyss (HOLE) chasmcleftcrater nouncrevassedefile noun gorge noun (VALLEY)gulf (AREA) gullyravineriftsinkhole noun (HOLE)