moulder (US molder)

v [I, Ip] ~ (away) crumble to dust; decay slowly 崩塌; 碎裂; 腐烂: the mouldering ruins of an old castle 古堡逐渐坍塌的遗迹.

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, mould (US mold), 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, mounted,