几周前，我们的朋友，西安滑手陈晓剑因滑板不慎摔伤头部，接受了开颅手术。
Weeks ago, our friend, the Xi'an skater Chen Xiaojian fell down to the ground during skateboarding. He got his head injured seriously and had a craniotomy.
陈学凯，教授，西安交通大学人文学院历史文化研究所所长毕业于南开大学历史系中国古代史专业，获历史学硕士。
Chen Xuekai, was born in 1954. He graduated from Nankai University with the major of Chinese Ancient History in the History Department, and was granted the master's degree.
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