doubter 词形变化: 名词: doubter | 动词过去式: doubted | 动词过去分词: doubted | 动词现在分词: doubting | 动词第三人称单数: doubts | 词义辨析: 同义: n.抱怀疑态度的人 skeptic apostate disbeliever questioner cynic free-thinker iconoclast 同义参见: know-nothing