相关单词近义词 abstract noun 抽象名词临近词concrete jet, concrete, concrete plate beam, concrete lock floor, concrete guard wall, concrete slab crack, concrete production, concrete pipe piles, concrete bored pile, concrete pil casing, concrete drain tile, concrete eco-film相似词concourse, concrete, concrete jungle, concrete mixer, concretely, concubinage, concubine, concupiscence, 返回 concrete noun