相关单词近义词 underpin 从下头支持, shore up 支撑, prop up 支撑, jack up 顶起(顶高), reinforce 加固, support 支持, buttress 扶墙, fortify 加强, hold up 举起临近词underwit, under, underused land, underprocessed, underwing rack, under-supply, under-ageing, underhand pass, underdeveloped, undercivilized, under sampling, undersubscribe 返回 underprop