蹐地局天

Explanation: A phrase from the "Poetry Xiaoya first month": "that the days of cover high dare not Board, that land to build thick, and dare not Ji." After "Ji to Bureau of days" to describe the act cautiously careful. 　　Source: A phrase from the "Poetry Xiaoya first month" that the days of cover high dare not Board, that land to build thick, and dare not Ji. " 　　Examples: ~, Very big wish. ★ Tang Bai "appellation for the second prime minister please table"