Wild Surroundings at Black Canyon of the Gunnison(翻译)

steep – adj. almost straight up and down : rising or falling very sharply

elevation – n. the height of a place

jagged – adj. having a sharp, uneven edge or surface

erosion – n. the process by which something is worn away

rim – n. the outer edge of a usually round object

access – n. a way of getting near, at, or to something or someone

cliff – n. a high, steep surface of rock, earth, or ice

overwhelming – adj. very great in effect

basement – n. the part of a building that is entirely or partly below the ground

adventurous – adj. not afraid to do new and dangerous or exciting things