reinforcement

n.强化

rehabilitate, rehabilitation, rehabilitative, rehash, rehear, rehearing, rehearsal, rehearse, rehouse, Reich, reign, reigning, reimburse, reimbursement, rein, reincarnate, reincarnation, reindeer, reinforce, reinforced, reinstate, reinstatement, reintroduction, reissue, reiterate, reiteration, reject, rejection, rejection slip, rejig, rejoice, rejoicing, rejoin, rejoinder, rejuvenate, rejuvenated, rejuvenation, rekindle, relapse, relate,