lifeguard

详细解释:n. 卫兵, 禁卫军, 救生员

词型变化：

动词过去式:lifeguarded过去分词:lifeguarded现在分词:lifeguarding第三人称单数:lifeguards

英语解释：

名词 lifeguard:

an attendant employed at a beach or pool to protect swimmers from accidents同义词：lifesaver