你知道西藏吗?西藏是世界上面积最大，海拔最高的地区。西藏的平均海拔在4000米以上，素有“世界屋脊”之称。世界第一高峰珠穆朗玛峰就在西藏。西藏人大都信奉藏传佛教，并由此形成了自己特有的文化体系。因此每年去西藏旅游的人很多。以前去西藏只能坐飞机。不过从去年开始有了青藏铁路。现在从北京可以坐火车去西藏了。从北京到西藏自治区首府-拉萨，48个小时内就可到达。在平均海拔4000米以上的地区，修建铁路，在中国是第一次，在世界上也没有先例。这次修建青藏铁路，共有十万筑路大军在青藏高原上艰苦奋战，历时5年才终于完工。现在青藏铁路是世界海拔最高的铁路，我去过西藏，上次是坐飞机去的，将来有机会的话，我还想坐着世界海拔最高的火车再去一次西藏。

Have you ever been to Tibet? Tibet is the largeest and highest area in the world. Its average altitude is above 4000 metres. It has the name of ridge of the world. The highest mountain Everest locates here. Most Tibetan beleive Lamaism which formes their own culture system. Therefore lots of people travel Tibet each year.

It's only possible to arrive Tibet by plane before. But from last year, Qinghai-Tibet Railway opened to traffic. It only takes 48 hours from Bei Jing to Lhasa, the capital of Tibet. Buidling railway in the area with an average altitude of above 4000 meters is the first time for China. There is no precedent in the world. There were hundreds of thousands of road workers worked hard for 5 years on the Tibetan Plateau. Now the Qinghai-Tibet railway is the highest railway in the world. I travelled Tibet by plane last time. I decide to travel it by train next time.

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