"The plans to run the trains at such high speeds posed a big safety risk, " said Zhao Jian, a professor at Beijing Transportation University.

北京交通大学的ZJ教授说，在如此高速下行驶火车带来了很高的安全风险。

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Then Beijing was a gray, drab, one-horse town where the main means of transportation was the bicycle.

那时的北京是一个灰色、乏味、设施简陋的城市，主要交通工具是自行车。

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For those graduates considering work outside Beijing there is also the added expense of transportation fees and accommodation.

对于那些想在北京以外地区工作的毕业生来说，交通费和住宿费也是一笔额外的开销。

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"I think the bullet train system is not stable and may break down in extreme weather conditions, " said Professor Zhao Jian, a transportation expert with Beijing Jiaotong University.

CNN: STORY HIGHLIGHTS

Soon, the sharp winter wind in Beijing was testing my commitment to transportation al fresco.

NEWYORKER: Green Giant

The growth of road freight and the more widespread use of private vehicles have made transportation the second area of priority for Beijing's energy conservationists.

FORBES: Magazine Article