Students, first of all, I want to say that word books are not the only way, but an indispensable foundation for victory. From now on, the TOEFL vocabulary book suggests that you buy another red treasure to recite together. Lubao adopts the following rules: recite 2 on the first day, review the first two on the second day, review the first two on the third day, review the first two on the fourth day, and review the first two on the fifth day without memorizing new ones. In this cycle. Little red books are arranged in order. How many little red books can you read every day after reciting the Green Treasure?