life preserver是什么意思 life preserver怎么读
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n. <美>救生工具； <英>(用以自卫的)护身棒
life preserver的英文翻译是什么意思，词典释义与在线翻译
Noun:- rescue equipment consisting of a buoyant belt or jacket to keep a person from drowning
life preserver的用法和样例
- A silky fiber obtained from the fruit of the silk-cotton tree and used for insulation and as padding in pillows, mattresses, and life preservers.
木棉一种绢状纤维，从木棉树的果实中提取出来，用作隔音材料，也可用作枕头，褥垫和救生用具中的垫料 - This is a life preserver.
这是救生用品。
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