hairpin turn
US /ˈher.pɪn ˌtɜːrn/
UK /ˈher.pɪn ˌtɜːrn/

1.
髮夾彎, 急轉彎
a very sharp bend in a road, especially on a mountain, that doubles back on itself
:
•
The bus struggled to navigate the steep hairpin turn on the mountain road.
公共汽車在山路上艱難地通過陡峭的髮夾彎。
•
Drivers must slow down significantly before a hairpin turn.
司機在髮夾彎前必須大幅減速。