lifeguarding n.救生員lifeguarded n.救生員lifeguard tower 救生員瞭望塔lifeguard (n.) lifeguard n.救生員lifegiver n. 給予活力之人或事物，強(qiáng)韌生命力lifefull 充滿生氣的lifeful adj.充滿活力的；充滿生氣的lifefloat 救生浮艇lifecycle n.生命周期；生命循環(huán)；生活過程lifecare adj.養(yǎng)老院的lifebuoy self-activating smoke signal [交通運(yùn)輸工程]救生圈自發(fā)煙霧信號lifebuoy n.救生圈lifebreath 生命lifeboats n. [船][安全] 救生艇（lifeboat的復(fù)數(shù)）lifeboatman n.救生艇人員lifeboat n.救生船lifeblood (n.) lifeblood n. 生機(jī)的根源；生命必須的血液；命脈；命根子lifebench 救生凳