an attendant employed at a beach or pool to protect swimmers from accidents
同义词:lifeguard
a life preserver in the form of a ring of buoyant material
同义词:life buoy, life belt, life ring
lifesaver详细解释
life.sav.er n.(名词)One that saves a life.救命者See lifeguard 参见 lifeguardOne that provides help in a crisis or emergency.救生员:在危机中或紧急情况下提供援助的人A life preserver shaped like a ring.救生圈:圈状救生用具 【引伸】 life.sav.ing n.(名词)