| 单词 | life preserver |
| 释义 | life preserverBrE /ˈlaɪf prɪzɜːvə(r)/ NAmE /ˈlaɪf prɪzɜːrvər/ noun (NAmE ) a piece of material that floats well , or a jacket made of such material , used to rescue a person who has fallen into water , by keeping them above water 救生用具 |
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