1.Jones was orphaned at the age of ten, and taken in by next-door neighbours 

 琼斯10岁时成为孤儿，被隔壁的邻居收养。

2.Mark joined as an office boy at the age of fourteen with no academic qualifications as such at all  

马克在14岁的时候以勤杂员的身份进入公司，他当时根本就没有任何学历。

1.Children often have temper tantrums at the age of two or thereabouts.儿童在两岁左右经常爱使性子。

2.I became a ham radio operator at the age of eleven.我在11岁时成了一名业余无线电操作员。

3.She entered public life at the age of 25.她25岁时开始了经常抛头露面的工作。