Professor Brightly walked into the lecture hall with a pile of dog-eared notes under his arm.布莱特利教授走进演讲厅，胳膊下夹着一沓折角了的讲义。Five hundred people filled the lecture hall.来了五百人，把演讲厅都挤满了。Let's go to the lecture hall in good time and find a good seat.我们提早去演讲厅，找个好位子。