在图书馆借书和续借英语怎么说？

Hi, I'm looking for this book but I can't find it on the shelf. Can you check if it's available?

你好，我在找这本书但架上没有，能帮我查一下有没有？

How many books can I borrow at a time? And how long can I keep them for?

一次能借几本？能借多久？

Can I put a hold on it if it's checked out? I really need it for my essay.

如果被人借走了能预约吗？我写论文真的需要这本。

Can I renew this? I'm not done with it yet. It's due tomorrow.

能续借吗？还没看完，明天到期。

I need to return these. Do I just drop them in the book return slot?

我要还这些书，直接放还书口就行吗？

Oh no, this one's overdue. Is there a late fee? How much do I owe?

糟了，这本过期了，有逾期费吗？我要交多少？

Can I pay the fine online, or do I have to do it at the front desk?

罚款能网上交吗，还是要去前台？

I swear I returned this book last week. Could you double-check the system?

我确定上周还了这本书，能再查一下系统吗？