相关单词同義詞backward, 近義詞 backward 曏後的, defective 有缺陷的, underdeveloped 發育不全的, slow 慢的, stunted 發育不良的, arrested 逮捕的, lagging 絕熱材料, mentally retarded 智能發育遲緩的...反義詞precocious, 早熟的臨近詞retard, retard time, retardative, retarder arm, retarder jaw, retard vt., retarded wave, retarded acid, retarded type, retarded tree, retarded flow相似詞retaliatory, retard, retardant, retardation, retch, retcon, retd, rete, 返回 retarded