He's a very large child for his age.

就其年龄来说，这孩子个头很大。

《牛津词典》

Can you guess his age?

你能猜出他的年龄吗？

《牛津词典》

She tried to make allowances for his age.

她已经尽力考虑到他的年龄了。

《柯林斯英汉双解大词典》

And one that men and women twice and three times his age still have not learned.

FORBES: Resilience: What You Can Learn from a High School Quarterback

Walter Ayovi knocked two years off his age and was playing under the surname of Corozo.

BBC: Academy for the stars

At his age, he says, he can't tie up all of his dough in long-term deals.

WSJ: A Nervy Approach to Retirement Saving | WSJ.Money Summer 2013