相关单词近义词 ever, hardly not often, seldom反义词always, continually, frequently, often临近词rarity, rare, rarely enough, rarely if ever, rarely used words, Rarely did I meet Mr.Eldon., rarely-used Chinese characters相似词rare, rare bird idiom, rarefied, rarefy, raring, rarity, ras el hanout, rascal, 返回 rarely