1
- a low and marshy or frequently flooded area of land低位沼, 沼泽（地）：
a flooded fen
淹水沼泽
mass noun 55 acres of fen.55英亩的沼泽。
1.1
the Fens
the flat low-lying areas of eastern England, mainly in Lincolnshire, Cambridgeshire, and Norfolk, formerly marshland but largely drained for agriculture since the 17th century（英格兰东部、主要在林肯郡、剑桥郡和诺福克郡境内的）平坦低地（曾是沼泽, 17世纪以来大多被排水后用作农田）。
1.2
- mass noun Ecology wetland with alkaline, neutral, or only slightly acid peaty soil【生态】（含碱性、中性或弱酸性泥炭土的）碱沼, 泥炭沼泽。 比较BOG.
派生词
fenny
adjective词源
Old English fen(n), of Germanic origin; related to Dutch veen and German Fenn.