我可以借几本书?
You can take two books out at a time. But you can't take out newspapers, magazines or periodicals; they have to be read here.
一次可以借两本书。但报纸、杂志及期刊不外借，只能在这里看。
How long am I allowed to keep the books for?
我可以倍多久?
For two weeks. After that you must renew the books if you wish to keep them longer. Otherwise we charge ten dollars a day fine for each book.
两星期。如果你还想再借，就要办续借手续，否则每本书超过一天我们要罚10元。
allow vt.允许(……进入);同意给;承认
periodical n.期刊 a.定期的，时而发生的
otherwise ad.否则;除此以外