ˌhairpin ˈbend (also hairpin turn American English) noun [countableC]
TTRa very sharp U-shaped curve in a roadU字形弯路，急转弯
Examples from the Corpus
hairpin bend• She floated above and ahead of them, and her eyes narrowed on to a shimmer of water at a hairpin bend.• When the road turns sharply left in a hairpin bend, take the footpath ahead into the woodland.• When not thinking about puking your guts up round every hairpin bend, scenery magnificent.