relativity

n.相对论；相关性

rejig, rejoice, rejoicing, rejoin, rejoinder, rejuvenate, rejuvenated, rejuvenation, rekindle, relapse, relate, relate...to, related, relatedness, relation, relationship, relative, relatively, relativism, relativistic, relax, relaxation, relaxed, relaxing, relay, release, relegate, relegation, relent, relentless, relentlessly, relentlessness, relevance, relevant, reliability, reliable, reliably, reliance, reliant, relic,