Yingying Zhang is so cautious, she warned her aunt in China to "be careful" when going out and to avoid using shared ride services.
원문출처 : http://www.cnn.com/2017/06/29/us/chinese-scholar-disappearance-family-speaks/index.html
원문출처 : http://www.cnn.com/2017/06/29/us/chinese-scholar-disappearance-family-speaks/index.html