长江流域的洪灾用英语怎么说

flood disaster in the Long River basin~

the flood in the Yangtze River catchment.
楼上的长江翻译错了，是Yangtze river，不是yangtse
然后流域常说catchment居多，看看国家地理杂志

the flood in The Yangtse River draining area.

flood disaster