英语视频丨霸占千年前“丝路商旅必吃榜”榜首的竟然是它！

What's in a bowl of mutton soup? A lot more than you may think, including deep links with history that take us right up to the present day. Let's go on a trip that first takes us to Xi'an, once an imperial capital called Chang'an and the starting point of the ancient Silk Road.