单词	life jacket
释义	life jacket ˈlife ˌjacket noun [C] ► F0 a piece of equipment, like a jacket without sleeves, that is filled with air or light material and is designed to help someone float if they fall into waterThesaurus+: ↑Protective clothing
随便看	the oldest profession in the world the oldest trick in the book the old guard the old school tie the Old Testament the Old World theologian theological theologically theology the Olympic Games the Olympics the once the one about the onset of sth the onus the open the operative word the opposite sex the Opposition the opposition the orchestra the order of the day the Ordnance Survey theorem

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