奥巴马总统就社区学院枪击案发表电视讲话
There's been another mass shooting in America – this time, in a community college in Oregon. That means there are more American families – moms, dads, children – whose lives have been changed forever. That means there's another community stunned with grief, and communities across the country forced to relieve their own anguish, and parents across the country who are ...