lifepak手提式心脏除颤器(商品名)lifen.一生；生命；生活；人生life employment终身职life foundation生命基础life uniqueness生命的独特性life situations生活情境life buoy flare救生圈闪烁life experienee生命体验life insurances人寿保险life expectance概率寿命Life-rescuing生命救援life activities生命活动