lifefuladj.充满活力的；充满生气的lifen.一生；生命；生活；人生life's uncertainties休闲文化lifecycle management生命周期管理life craft frequency救生飞机频率life line rescue gun射绳枪Lifen House in Wuhan休闲消费lifesaving appliance救生装置life security system生活保障体系life of cutting tool[机] 刀具寿命life-long immunity终身免疫Life of Adam and Eve亚当和夏娃的生平