Commencement exercises at Virginia Tech last night were bittersweet. College officials gave rings to the parents of 27 students killed by a gunman last month. They say diplomas will follow.

• 昨晚,佛吉尼亚州进行了又苦又甜的毕业典礼,学校的官员给在上月被一个持枪的人杀害的27个学生的家长打电话,告诉他们毕业证书将会跟随着他们。