中国的地震摧毁了桥梁和道路，导致数百座建筑倒塌。斯坦福大学的结构工程师安·基雷米吉安说，这些建筑还没有做好抗震准备。
The earthquake in China obliterated bridges and roads and caused hundreds of buildings to collapse. The structures weren't quake-ready, says Stanford University structural engineer Ann Kiremidjian.