mould (US mold)

n [U] soft fine loose earth, esp from decayed vegetable matter 细而松软的土壤（尤指因含腐殖质）: leaf mould, ie from decayed leaves and twigs that have fallen off trees 腐殖质土.

motor, motor bike, motor boat, motor car, motor cycle, motor-engine, motor-scooter, motor-way, motorbike, motorcade, motorcar, motorcycle, motoring, motorist, motorize, motorise, motorway, mottle, mottled, motto, mould, moulder (US molder), moulding (US molding), mouldy (US moldy), moult, moult (US molt), mound, mount, Mount Fuji, mountain, mountain ash, mountain chain, mountain range, mountain lion, mountain sickness, mountain side, mountaineer, mountaineering, mountainous, mountains, mountainside, mountebank,