life preserver的意思|life preserver的解释-里氏词典

n. <美>救生工具, <英>(用以自卫的)护身棒

This is a life preserver.
这是救生用品。
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

life preserver

[ noun ]
rescue equipment consisting of a buoyant belt or jacket to keep a person from drowning
<noun.artifact>

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