1. flood plain：红外测距仪(红外光电测距仪) infra-rad distance meter | 洪泛区 flood plain | 洪峰水位 peak stage of flood
2. flooding area：So many villager flood in Shanghai. 拥入 | flooding area洪泛区 | l tragic与惨剧有关的(客观)
3. 洪泛区在线翻译
3. flood stricken area：flood strength ==> 涨潮流速 | flood stricken area ==> 洪泛区 | flood subsidence ==> 洪水消退