switchback造句

The road started to turn in bends and switchback .
公路变成了那种“之”字形的盘山路。
Even at this hour it was acrawl with men , builders pushing up a new switchback stair to join the remnants of the old
这么早长城上就挤满了人；工匠们正在将一段新旋梯接补到残破的旧楼梯上。
From the arch we climb up a precipitous switchback road , and through a magnificent , mile long , tunnel that has been blasted into the navajo sandstone
大的莫哈维沙漠，翠绿的约书亚树，点缀在一望无际的黄沙中，别有一番情趣。
It's difficult to find switchback in a sentence. 用switchback造句挺难的