rejuvenation

n. 返老还童,恢复青春,恢复 活力

reindeer, reinforce, reinforced, reinforcement, reinstate, reinstatement, reintroduction, reissue, reiterate, reiteration, reject, rejection, rejection slip, rejig, rejoice, rejoicing, rejoin, rejoinder, rejuvenate, rejuvenated, rekindle, relapse, relate, relate...to, related, relatedness, relation, relationship, relative, relatively, relativism, relativistic, relativity, relax, relaxation, relaxed, relaxing, relay, release, relegate,