Successive governments have permitted such increases on the grounds that the cost of investing in and running the railnetwork should be borne by those who use it, rather than the general taxpayer.
历届政府都允许这种增长，理由是投资和运营铁路网络的成本应由使用者承担，而不是一般纳税人。
2
Our country now has the longest high-speed railnetwork in the world.
我国现在拥有世界上最长的高速铁路网。
3
Today China has the longest high-speed railnetwork among all the countries in the world.