更重要的是，中国正在研制最高时速400公里的新型高速列车。
What's more, China is working on the new high speed trains with the highest speed of 400km/h.
到2020年，中国15万公里铁路网的五分之一将供高速列车使用。
By 2020, one fifth of the country's 150, 000 km railway network will be used by high-speed trains.
自从法国于1981年在巴黎至里昂推出首列时速260公里的高铁以来，列车的速度已经变得越来越快。
Since France introduced the first 260-kilometer-per-hour high speed train service between Paris and Lyons in 1981, the trains have achieved higher and higher speeds.
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