Trains are reliable, cheap and best for long-distance travel.

乘火车可靠、便宜，最适合长途旅行。

《柯林斯英汉双解大词典》

In the 20th century, airplanes replaced trains for long distance travel.

在20世纪，飞机代替了火车进行长途旅行。

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The short distance travel has a stronger impact.

短途旅行产生了更大影响。

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Yet,they proved that long-distance travel across the United States was possible.

VOA: special.2010.01.11

Notice that these transport costs go up in the distance you have to travel and they go up pretty fast.

注意这些交通成本,随着距离而增长并且增长得很快

耶鲁公开课 - 博弈论课程节选

These released particles can now go on and infect neighboring cells, they can travel in the bloodstream to infect cells at a distance and the virus spreads throughout a multicellular host.

这些释放出的病毒颗粒,可以继续感染邻近的细胞,它们可以随着血流去感染远距离的细胞,于是病毒可以在多细胞宿主体内全面扩散

耶鲁公开课 - 生物医学工程探索课程节选

He shrugs his shoulders at the mention of carbon footprints linked to long-distance travel.

BBC: Norway's Roros keeps reindeer recipes under wraps

And yet, the prevailing atmosphere among the passengers was one of optimism, thanks to the short-term solidarity that sometimes accompanies long-distance travel.

BBC: Africa��s path less sailed

The bicycle, Mr Penn writes, was also the forerunner of long- distance travel.

ECONOMIST: How Robert Penn found himself the perfect two-wheeler