《科技前沿 共建一帶一路》 第1集 中老鐵路：瀾滄號動車安全舒適
Synopsis
中國和老撾山同脈、水同源，發源於青藏高原的瀾滄江—湄公河，流經中國和老撾，見證兩國源遠流長的友誼。 按照中國「復興號」 ...
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