名词中文翻译
中文翻译：救生背心
同义词：
['life jacket', 'survival vest例句：1. He wore a life vest while swimming in the ocean.（他在海里游泳时穿着救生背心。）']
例句：
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1. He wore a life vest while swimming in the ocean.
他在海里游泳时穿着救生背心。
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2. The boat had to be pulled back to safety by the life vests.
船上的救生背心被用来将船拉回安全地带。
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3.The firefighters were wearing life vests when they entered the burning building.
消防员们穿着救生背心进入着火的大楼。