Lesson 91  How long've you been here?
第91课   你在这儿多久了?
Narrator:It's midnight Two policemen are outside the library.
旁白:现在是半夜.两个警察在图书馆外面.
Policeman:Look at that!  Policeman:What?
警察甲:看那个! 警察乙:什么?
Policeman:A light's on in the library.
警察甲:图书馆里有盏灯还在亮着.
Policeman:That's funny The library's shut.
警察乙:这就怪了.图书馆关门了.
Policeman:Let's climb in and see.
警察甲:我们爬进去看看.
Policeman:Look!There's a man in the reading-room.
警察乙:你看,阅览室里有个人.
Policeman:What are you doing here?
警察甲:你在这儿干什么?
Professor:I'm reading.
伯菲教授:我在看书.
Policeman:But it's midnight!
警察乙:可已经是半夜了.
Policeman:How long've you been here?
警察甲:你在这儿有多久了?
Professor:I've been here since this morning.
伯菲教授:从早晨起就一直在这儿.
Policeman:He's been here for fifteen hours!
警察乙:他在这里呆了十五个小时!