He was collecting the information of cultural relics from the city of Xi' an, which was a key stop along the Silk Road

1. He was collecting the information of cultural relics from the city of Xi' an, which was a key stop along the Silk Road t China's ancient history. (根据首字母单词拼写)

1. He was collecting the information of cultural relics from the city of Xi' an, which was a key stop along the Silk Road t China's ancient history. (根据首字母单词拼写)