相关单词近义词 distrust 不信任, diffidence 无自信, suspicion 猜疑, dubiousness dubious的名词形式..., doubt 怀疑, question 问题, uncertainty 不确定, dubiety 怀疑, incertitude 疑惑临近词doubtful, doubtful about/of, doubtful sponsor list, doubtful about result, doubtful of /about, doubtful as to sth., doubtful bill receivable, doubtful debts provision, doubtful positive sample, doubtful accounts provision, doubtful notes and accounts 返回 doubtfulness