YouTube03 Aug 2022
11m

京沪高铁有多快?时速350km/h 北京到上海只要4小时!《中国高铁》第1集【CCTV纪录】

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京沪高铁有多快?时速350km/h 北京到上海只要4小时!《中国高铁》第1集【CCTV纪录】