A：Can I help you?我能为您效劳吗?
B：Yes, I’m doing some research on Roman civilization. Do you have any books on the subject?我在做一些关于罗马文明方面的研究，这方面有没有什么书?
A：These books over here are about ancient history. They might be helpful.这里的这些书是关于古代历史的。可能有些帮助。
B：Can I check this one out?这本可以外借吗?
A：I’m sorry. It’s for reference only, so it must stay in the library. But you’re welcome to look through it.对不起，这本只是参考书，不能外借。但是你可以查阅。
B：Ok. And I’d like to check these books out.好吧。我想借这些书。
A：All right. They’re due back next Wednesday.好的。归还期限是下个星期三。
B：Thanks for your help.谢谢你的帮忙。