That Beijing, together with Zhangjiakou,     1     (succeed) in getting the chance to host the 2022 Winter Olympic Games in 2015, speeds up the development of Zhangjiakou City.

Word came     2     the Beijing-Zhangjiakou high-speed railway,     3     (locate) in North China, is currently under construction, and is expected to be completed by 2021 in preparation for the cities to host the 2022 Winter Olympics. Starting from Beijing North Railway Station and heading west through the Great Wall three times in the capital’s territory, the project is a big challenge,     4     designers say the explosions needed to dig the tunnels will not have an impact on the structure. The line has a     5     (long) of 174km as a double tracked passenger dedicated line(双轨道乘客专线), with ten stations situated along       6     (it) route. Having a     7     (totally) investment of 31.17 billion yuan ($5 billion), the trip between the two cities will only take 40 minutes, with the train     8     (travel) at an average of 250 km/h. According to the plan, the high-speed railway will build two branch lines — one is to Yanqing Station and the other     9     Taizicheng of Chongli, where the Olympic village lies. The full railway, which includes a 70-kilometer section through Beijing, will be completed in one and     10     half years.