mumble

v.含糊地说，咕哝 n.含糊的

mullioned, multi-, multifaceted, multifarious, multifunction, multilateral, multilingual, multimedia, multinational, multiple, multiple sclerosis, multiple-choice, multiplex, multiplication, multiplication table, multiplicity, multiply, multitude, multitudinous, mum, mumbler, mumbling, mumbo-jumbo, mummer, mummification, mummify, mumming, mummy, mumps, munch, mundane, municipal, municipality, munificence, munificent, munificently, muniments, munition, munitions, mural,