Explanation: Repeatedly read, to think seriously about. Source: Song Su Shi, "An ox scholar loss solution to send Seogwi" 100 back tire of reading books, knowing the child familiar with food for thought. "
No. 2
Repeated reading, and seriously thinking about. Song Su Shi, "free safety Tun scholar loss solution Seogui" Poetry: "100 back tire of reading books, knowing children familiar with food for thought." "ZHUAIYULE," Volume 9: "In this view it can not be Gou known to be familiar with food for thought, reason from the see. "