pluvial lake洪: I big; vast; grand积: amass; store up; accumulate湖: lake洪积: deluvial; diluvial; diluvion; diluvium; proluvial淤积湖平原: filled-lake plain下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:洪积湖,即可在微信中查询翻译