头童齿豁

Explanation: Children: originally referred to the mountains without vegetation, the metaphor of people bald; excluded: the gap. Bald head, teeth dilute. Describe the state of human aging. 　　Usage: Joint type; as the predicate attribute; describe the state of human aging 　　Source: Tang Han Yu "into learning solutions": "exclusion of the first child tooth, what death actually benefit?" 　　Examples: The number of patients a year, ~; and suddenly his wife was the mother of the change, re-shaped God and fragmented. (Qing Zhangting "Weston Epitaph")