汉译英:你问图书管理员一次能借几本书?

【是直接问还是要加“你问”？】

1.
直接问--How many books can I borrow at a time?(一次能借几本书？)

2.
按你提供的“你问图书管理员一次能借几本书”的原句--Please ask the librarian how many books I can borrow at a time.（请帮我问一下图书管理员一次能借几本书。）

You can ask the librarian again to borrow some books

Please ask the librarian how many books one can borrow at a time.

直接问——Excuse me,could you tell me hou many books can I borrow at a time?
“你问图书管理员一次能借几本书?”——You ask a librarian hou many books you can borrow at a time.