相关单词近义词 burdensome, hefty, ponderous, weighty, abundant, copious, substantial, voluminous, grave, serious, boring, dismal, dull, gloomy, melancholy, oppressed, sad, tiresome反义词light, airy, buoyant, cheerful, happy临近词heavyweight, heavily, heavyset, heavy NP, heavyish, heavy bag, heavy rug, heavy dew, heavyside, heavy tar, heavy ice, heavy oil 返回 heavies