fen
noun [ C or U ] uk/fen/ us/fen/ (also fenland, /ˈfen.lənd/ /ˈfen.lənd/)
沼泽地带，湿地
an area of low, flat, wet land in England
areas of marsh and fen 湿地沼泽地区
The road to Ely leads out across the fens. 通往伊利的路横穿沼泽地带。
Compare: marshland