nullah
noun /ˈnʌlə/
/ˈnʌlə/
(also nala)
(Indian English)- a stream, an artificial channel for water, a river bed (= an area of ground over which a river usually flows), or a deep, very narrow valley with steep sides
明渠:一条河,一条人造的水道,一条河床(一条河流通常在其上流过的地面区域)或一个深而狭窄的山谷,两边陡峭