switchback
n.在Z形路轨向原来的方向返驶,改变角度 adj.使用之字爬坡路线的
难易程度:
switchback为短语/超纲词汇
switchback
/'swɪtʃbæk; `swɪtʃ,bæk/
n
1 (esp Brit) = roller-coaster (roller).
2 zigzag railway or road for ascending or descending steep slopes （上下陡坡的）之字形铁路或公路.
n
1 (esp Brit) = roller-coaster (roller).
2 zigzag railway or road for ascending or descending steep slopes （上下陡坡的）之字形铁路或公路.
switchback
n[C]
a road or track that goes up and down steep slopes and around sharp bends
a road or track that goes up and down steep slopes and around sharp bends
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