life vest
近义词：lifejacket，corkjacket，
英英释义
Noun
- life preserver consisting of a sleeveless jacket of buoyant or inflatable design
例句
用作名词(n.)
- Your life vest is stored under your seat.救生衣就在你的座位底下。
- The life preserver kept him up until the boat came.救生衣使他保持浮在水面直到小船来救他。
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