第1个回答 2008-02-12
at和in都可以
He married at 26.(具体年龄)
He is a man in his 60s.(几十多岁)本回答被提问者采纳
第2个回答 2008-02-12
at the age of 年龄
介词短语只有这个~in on 没见过
第3个回答 2008-02-12
at sb's +age
eg: She is at her twenty. = She is twenty
第4个回答 2008-02-12
in the age of 87
87岁