One chilly night when I was hiking in the Rocky Mountains with some students, I mentioned that we were going to cross a mountain stream.

一个寒冷的夜晚，当我和几个学生在落基山脉徒步旅行时，我提到我们将要渡过一条山间小溪。

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In the west of China, there are lots of high-pier Bridges that cross the huge mountains and rivers.

中国的西部地区，多处于大山大河的地区，地形起伏，沟壑交错，山岭纵横，所以高墩桥甚多。

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We had to cross the mountains between Spain and France in winter, and the snow was deep.

我们不得不在冬天穿越位于西班牙和法国之间的大山，积雪很深。

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The battle comes just a few days after Turkey's parliament voted overwhelmingly to authorize cross-border military attacks against Kurdish rebel camps in the mountains of neighboring Iraq.

NPR: Kurdish Rebels Attack Turkish Force at Border

From their cottage homestay I took in the imposing mountains I was about to cross.

BBC: The way of the shepherd: Horse trekking through Kyrgyzstan

There is also plenty of skiing, snowboarding and cross-country skiing to be done elsewhere in the country, where the mountains may not soar as high as the Alps, but assets include cheaper prices, smaller crowds and a less frenetic atmosphere.

BBC: Getting fresh in Germany: Cycling, hiking and skiing