相关单词同义词surely, definitely, ok, 近义词 absolutely, definitely, doubtless, naturally, of course, surely, undoubtedly, unquestionably, without question反义词doubtfully, dubiously, questionably临近词certainty, certain, Certainly., certainly not, certainly resign, certainly factor, Certainly not., certainly useless, Certainly I do., Certainly you can., certainly will succeed, Certainly without ice.相似词Ceres, cerise, cert, certain, certainty, certifiable, certificate, certified, 返回 certainly