switchback

US /ˈswɪtʃ.bæk/
UK /ˈswɪtʃ.bæk/
"switchback" picture
1.

之字形弯道, 发夹弯

a road, path, or railway with a series of sharp turns, each reversing the general direction of travel, used for climbing or descending a steep gradient

:
The mountain road was full of dangerous switchbacks.
山路充满了危险的之字形弯道
Hikers often encounter switchbacks on steep trails.
徒步旅行者在陡峭的小径上经常遇到之字形弯道
1.

修成之字形, 蜿蜒而上

to make a road, path, or railway with a series of sharp turns

:
Engineers had to switchback the railway line to navigate the steep terrain.
工程师们不得不将铁路线修成之字形以应对陡峭的地形。
The trail was designed to switchback up the mountain, making the ascent less strenuous.
这条小径被设计成之字形上山,使攀登不那么费力。