lifebelt
noun /ˈlaɪfbelt/
/ˈlaɪfbelt/
- (British English) a large ring made of material that floats well, that is used to rescue somebody who has fallen into water, to prevent them from drowning
Topics Transport by waterc2救生圈 - (North American English) a special belt worn to help somebody float in water
see also life jacket, life preserver(使人不下沉的)救生带