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English definition of “life preserver”

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life preserver

noun [C]  /ˈlɑɪf prɪˌzɜr·vər/ us  
a large ring or jacket without sleeves made of material that floats and that you can put around your chest to keep you from sinking in the water
Translations of “life preserver”
in Chinese (Traditional) 救生圈或救生衣,救生背心…
in Chinese (Simplified) 救生圈或救生衣,救生背心…
(Definition of life preserver from the Cambridge Academic Content Dictionary © Cambridge University Press)
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