沼泽地开沟犁
wet-earth trenching plough
沼泽地
Bog
slump
muskeg
wham
coastal march in tidal waters
marsh land
everglade
bog-land
Swale
glady
maremma
Marsh
wetland
glade
Swampland
swamp area
marshy ground
Swamp
Fen
Quagmire
moor
fenland
Marshland
Slack
swamp land
marsh ground
bog ground
slough