life-guard

n expert swimmer employed to rescue bathers in difficulty or danger （游泳场的）救生员.

lieu, Lieut (also Lt), lieutenancy, lieutenant, life, life annuity, life assurance, life insurance, life cycle, life expectancy, Life Guards, life history, life interest, life peer, life sciences, life story, life work, life-and-death (also life-or-death), life-blood, life-boat, life-giving, life-jacket, life-preserver, life-raft, life-saver, life-saving, life-size, life-size, life-sized, life-span, life-style, life-support, life-time, life-work, lifebelt (also lifebuoy), lifeboat, lifeless, lifelessly, lifelessness, lifelike, lifeline, lifelong,