lifebelt

美 [ˈlaɪfˌbelt]
英 ['laɪf.belt]
  • n.救生圈;(使人不下沉的)救生带
  • 网络安全带;保险带;救生衣
复数:lifebelts  
lifebelt
n.
1.
救生圈a large ring made of material that floats well, that is used to rescue sb who has fallen into water, to prevent them from drowning
2.
(使人不下沉的)救生带a special belt worn to help sb float in water

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