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Từ điển Oxford Advanced Learner 8th
lifebelt
life·belt [lifebelt lifebelts] BrE [ˈlaɪfbelt] NAmE [ˈlaɪfbelt] noun
1. (BrE)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. (NAmE)a special belt worn to help sb float in water
see also ↑life jacket, ↑life preserver
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