中国拥有世界上最庞大的高速铁路工程，铁路总长3.79万公里，连接了中国所有主要的大城市。

With 37,900 kilometers of lines linking all of its major big cities, China has the world's largest work of high-speed railways.

youdao

举例来说，这一项目将新建29条总长31000英里的铁路，连接所有城市，并使用单一车票。

For instance, the project aims to add 29 rail lines (31,000 miles of track) linking the cities on which riders can use a single fare card.

youdao

同时会修筑一条总长495公里的私有铁路，和一个靠近Bowen的新码头。

A private 495-kilometre rail line will be built, along with new jetties and ports near Bowen.

youdao