gully
noun [ C ] (also gulley) uk/ˈɡʌl.i/ us/ˈɡʌl.i/
(US also gulch)隘谷;溪谷;冲沟
a narrow valley or channel with steep sides, made by a fast-flowing stream
Compare: abyss (HOLE) canyonchasmcleftcrater nouncrevassedefile noun gorge noun (VALLEY)gulf (AREA) ravineriftsinkhole noun (HOLE)
排水沟
an artificial channel that is used to get rid of water that is not wanted