1. Unlimited reading time card: some inactive users can exchange book currency.
2, share this week's soaring list page: friends click on the link to get an unlimited card for one day.
3. Daily answering activity: get book money or unlimited cards.
4. Unlimited reading day on the 4th of each month: You can get 3 days of unlimited reading cards for sharing activities, and invite friends to help you for up to 7 days before the 8th of that month.
5. Flip every Tuesday: All flips have a small probability of getting an unlimited card.
6. Four episodes of praise 12 days every week.