switchback

美 ['swɪtʃ.bæk]

英 ['swɪtʃ.bæk]

复数：switchbacks 现在分词：switchbacking 过去分词：switchbacked

同义词

bend,twist,zigzag,hairpin,turn

switchback

1.	（公路或铁路坡道上的）之字形路线；（公路或铁路的）不断起伏的路线a road or railway/railroad track that has many sharp bends as it goes up a steep hill, or one that rises and falls steeply many times

2.	（陡坡路上的）急转弯，180 度的转弯a 180 degree bend in a road that is going up a steep hill