It takes one second to say "I do", but a lifetime to prove it. 说一句“我愿意”只用一秒,证明它却需要一辈子。
She devoted her lifetime to the study of zoology.
她以毕生精力从事动物学研究。
You let the chance of a lifetime pass by!
你错过了一生难逢的机会。
※HAPPINESS——A lifetime of happiness ! No man alive could bear it ; it would be hell on earth .(G. Bernard Shaw ,British dramatist )终身幸福!这是任何活着的人都无法忍受的,那将是人间地狱。(英国剧作家 肖伯纳. G.)