开讲啦 - Season 12 Episode 50
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高铁是现在中国的一张名片，从2008年到现在，十五年的时间，中国已建成4.3万公里的高铁，超过了除中国以外，全世界其他国家所有高铁里程的总和，高铁让人们出行的感受大为提升。本期《开讲啦》邀请中国科学院院士、轨道交通工程专家翟婉明，他助推和见证了中国之前铁路的每一次提速，也见证了中国高铁从无到有、从落后到引领发展的历程。
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