Ganjingzi library needs a library card to borrow books. To get a library card, you need a deposit of 50 yuan, and the borrowing fee is 10 yuan. That is to say, you have to pay 60 yuan to finish reading it. This card is valid for one year. After one year, you must take this card to get back the deposit. If you want to continue reading, you have to get 10 yuan. . . . . It's easy to read in it, one yuan at a time. You can stay in it for a day and look around.