rarity

n. 稀罕,罕有,珍贵,稀薄

rapier-thrust, rapine, rapist, rapport, rapprochement, rapscallion, rapt, raptly, rapture, rapturous, rapturously, rare, rare earth, rarebit, rarefaction, rarefied, rarefy, rarely, rareness, raring, rascal, rascally, rase, rash, rasher, rashly, rashness, rasp, raspberry, raspy, Rastafarian, rat, rat-a-tat-tat, rat-tat, ratatat, ratbag, ratchet, rate, rate-capping, rateable,