汲汲皇皇

Explanation: Engrossed: anxious look. Urgent rush 　　Usage: Joint type; as predicate, adverbial; that urgent rush 　　Source: Jiuyuan Song "and Zhou Yuanzhong": "suspect and then released, Tuen interpretation of the pole, there must be engrossed insignificant, and not an instant from the safety of Italy, is able to explain." Thesaurus:  avid Headlong