W: Yes. I am a bit confused. ?My sociology class is supposed to read a chapter in a book called Sociology(社会学)and the Modern Age. My professor said the book is in the library, but I haven’t been able to find it.

M: Let me see. Oh yes. Your professor has placed this book on reserve. You need to go to a special room called the reserve room.

W: I’m sorry, I still don’t understand what you mean by on reserve.

M: You see, your professor wants everyone in the class to read the chapter. ?So, to make sure that all students have the opportunity to read it, he places it on reserve. W: Will I be able to find this book?

M: Yes, when it is on reserve, a student can go to the reserve room and ask the reserve librarian for it. The student can keep the book for a few hours, ?and he or she must read it in the library during that time. That way, the book stays in the library, and all students have a chance to read it. W: OK. Thank you. I understand now.

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