hairpin turn

US /ˈher.pɪn ˌtɜːrn/
UK /ˈher.pɪn ˌtɜːrn/
"hairpin turn" picture
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。