regain

vt.恢复；复得

refreshment, refrigerant, refrigerate, refrigeration, refrigerator, refuel, refuge, refugee, refulgence, refulgent, refund, refundable, refurbish, refusal, refuse, refuse collector, refuse to do, refutable, refutation, refute, regal, regale, regalia, regally, regard, regard...as, regarding, regardless, regardless of, regatta, regd, regency, regenerate, regeneration, regenerative, regent, regent (often 常作 Regent), reggae, regicide, regime,