日久月深

Explanation: Depth: long-term. Refers to the time long. 　　Source: "Wei Xiao Bao late at night Biography": "and the officer in Beijing, Jinian was a test ... ... Although the text book, note the Temple the most, falling on the deep, split-off are exhausted, the fate of people who re-charge the ground falling? " 　　Examples: Ruozuo want to keep God, Chi lean gas exhausted, even though the situation Vision mouth, breathing opening, are to be ~, tired of credit wide. ★ Song Zhangjun room, "Yun Ji Qi signed" Sixty