mutation

n.变化，变异，转变

musky, Muslim, Muslim (also Moslem), muslin, musquash, muss, mussel, must, mustache, mustachio, mustang, mustard, mustard gas, muster, mustiness, musty, mutability, mutable, mutant, mutate, mutatis mutandis, mute, muted, mutely, muteness, mutilate, mutilation, mutineer, mutinous, mutinously, mutiny, mutt, mutter, mutterer, muttering, mutton, mutton-head, mutual, mutual funds, mutual insurance,