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lifebelt是什么意思？
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lifebelt

英[ˈlaɪfbelt] 美[ˈlaɪfbelt]
  • 复数：lifebelts;
    • 相关单词 lifebelts
    柯林斯高阶英汉双解学习词典释义
    • N-COUNT
      救生圈
      A lifebelt is a large ring, usually made of a light substance such as cork, which someone who has fallen into deep water can use to float.