flash flood

山洪暴发

ph.

突然、短暂的水灾

flash flood

flash flood1.■[美国英语](顺狭窄溪谷或山坡坡面下泻的)骤发洪水，暴洪2.■(暴雨)骤发洪水

1. a sudden local flood, typically due to heavy rain
   （尤指大雨导致的）洪水
   

flash flood

名词 flash flood:

a sudden local flood of great volume and short duration

同义词：flashflood

flash flood