Explanation: Metaphor persistent efforts, and finally achieve their goals.
No. 2
Metaphor persistent efforts, and finally achieve their goals. Qing zhen "Present status and outlook of Taicang memorial to the throne after the book": "Shan (Wang Yan) District holds ants of loyalty and succeed the peep hole gap, in Kangxi 50 years, fifty-nine, sixty years, petitioned the Crown Prince register established , after more than a decade on dredging. "