相关单词同义词backward, 近义词 backward 向后的, defective 有缺陷的, underdeveloped 发育不全的, slow 慢的, stunted 发育不良的, arrested 逮捕的, lagging 绝热材料, mentally retarded 智能发育迟缓的...反义词precocious, 早熟的临近词retard, retard time, retardative, retarder arm, retarder jaw, retard vt., retarded wave, retarded acid, retarded type, retarded tree, retarded flow相似词retaliatory, retard, retardant, retardation, retch, retcon, retd, rete, 返回 retarded