乐以忘忧

Explanation: As happy and forget the sorrow. 　　Usage: Complex type; as predicate, object; means happy and forget the sorrow 　　Source: Pre Confucius "The Analects of Confucius described the": "The man is also excited, forgot to eat, music to lotus." 　　Examples: Like this and other ~, Hu will return tonight's! (Yuan Wang Shih-fu "Lichun Church" the third off)