lifefuladj.充满活力的；充满生气的lifen.一生；生命；生活；人生life's significance异性选模标本,选配模标本life-long product终身产品life cycle scenario全生命周期方案life polluted water生活污水Life long athletics终身体育life saving of ship船舶救生Life in the UK Test英国知识考试life income annuity终身年金人寿保险life cycle approach生存期方法life-ong learning终身学习