不可企及

Explanation: Enterprise: hope; and: reached. Not hope to achieve. Described as nearly as much. 　　Usage: Partial official; as predicate; for persons and things 　　Source: Tang Mian Liu, "A Quzhou Zheng Shijun": "and the non-enterprise and who is also." 　　Examples: His results are not ~, we just work hard, be able to catch up with him. Thesaurus:  Catch up, Elusive, Elusive