英语作文 假定我先邀请里教授于周六下午三点在学校大会堂做有关地震防

That day, along with the shrill whistle sounded, the teacher let's grab bag cap on his head, prevent head injury, we quickly drill under his desk. Some students are too fat, drill down urgent to put desk top up; Some too try so hard, the desks are out of the water. ...