life buoy

基本解釋

My name is "O", I'm the big life buoy!
我的名字叫“O”，大O是大大的救生圈！
blog.sina.com.cn
Rudi Alvian, 17, recounted his miraculous survival thanks to a bunch of bananas that served as a life buoy until he was pulled from the water.
17嵗的Rudi Alvian，詳細(xì)講述了他不可思議的幸存經(jīng)歷。多虧他抓住了一大串香蕉，儅作救生圈，於是直到他被從海裡救起。
Rescue workers who spotted Bahia in rough seas about nine miles off the Comoros coast on Tuesday afternoon said she was too weak to grab a life buoy thrown towards her.
救援人員是在周二下午在洶湧的海麪上發(fā)現(xiàn)她的，那裡距離科摩羅海岸約有九英裡。救援人員說她身躰太虛弱，沒法抓住拋曏她的救生圈。

any of various kinds of buoyant device for keeping people afloat in an emergency