life-preserver

常见例句

The life preserver kept him up until the boat came.
救生衣使他保持浮在水麪直到小船來救他。
A life preserver shaped like a ring.
救生圈圈狀救生用具
Dan: Surfboard? I need a life preserver!
丹：沖浪板？我需要一個救生圈。
PFD - Personal Flotation Device;a life preserver.
Position Finding Device,位置測定位，測位儀[器];
Every man's task is his life preserver.
維持一個人的生命事物，就是他的事業。
This is a life preserver.
這是救生用品。