rein

n.缰绳 vi.驾驭

regulate, regulation, regulator, regulatory, regurgitate, regurgitation, rehabilitate, rehabilitation, rehabilitative, rehash, rehear, rehearing, rehearsal, rehearse, rehouse, Reich, reign, reigning, reimburse, reimbursement, reincarnate, reincarnation, reindeer, reinforce, reinforced, reinforcement, reinstate, reinstatement, reintroduction, reissue, reiterate, reiteration, reject, rejection, rejection slip, rejig, rejoice, rejoicing, rejoin, rejoinder,