retards
词形变化：
名词: retarder | 动词过去式: retarded | 动词过去分词: retarded | 动词现在分词: retarding | 动词第三人称单数: retards |
同义词：
delay | check | hinder | impede | curb | inhibit | arrest | detain | slow down | hold back | hold up | stay | damp | obstruct | back | keep | keep back | stem | half-wit | idiot | cretin | decelerate | slow up | moron | imbecile | changeling | slow |
反义词：