We then fly to the historic city of Xi' an for two nights' stay.

之后我们坐飞机去古城西安待两个晚上。

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After seeing the Terra Cotta Warriors outside of Xi 'an, we returned to the city to view the Xi 'an city Wall.

在参观了西安城外的兵马俑之后，我们便返回到市区参观西安古城墙。

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Xi 'an city wall is the best preserved of its kind in China.

西安的城墙是中国古代城墙中保存最完好的一处。

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"It was just like May 12, " Liu Xi, a writer in Ya'an city, said via a private message on his account on the Twitter-like Weibo service.

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