Now, it's tracking your stride length.

现在，也能跟踪你的步幅。

It's set to smash all existing records for roller-coaster speed, height, and track length.

它将打破过山车所有现有的速度、高度和轨道长度的记录。

As of 2021, China's high-speed rail network stretches for 37,900 kilometres, while its entire rail track length runs for over 141,000 kilometres.

截至2021年，中国的高铁网长达37900公里，而全部铁路轨道长度超过141000公里。