life-blood

n [U] 1 blood necessary to life 生命必需的血液. 2 (fig 比喻) thing that gives strength and vitality活力的来源; 元气: Credit is the life-blood of the consumer society. 信誉是消费界的生命线.

lied, liege, lien, 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-boat, life-giving, life-guard, 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,