京沪高铁本应成为中国高铁网络皇冠上的明珠，但这条线路自6月投入运行以来不断受到故障停车困扰。
The high-speed line between Shanghai and Beijing was supposed to be the jewel in the crown of the country 's bullet train network , but it has been beset by stoppages since opening in June .
铁皇冠