相關(guān)單詞同義詞only, unknowingly, 近義詞 unwittingly 不知不覺地, by surprise 突然(冷不防..., off guard 不警戒， 不警惕, ，不提..., unexpectedly 未料到地, on the hop 到処奔忙(出其不意)..., short 短的臨近詞unaware相似詞unavailing, unavoidable, unaware, unawareness, unbalance, unbalanced, unbearable, unbeatable, 返回 unawares