She burst on to the world tennis scene as a precocious 14-year-old.

她作为一个14岁的早熟孩子突然出现在了世界网坛上。

《柯林斯英汉双解大词典》

The attackers were said to be taking revenge on the 14-year-old, claiming he was a school bully.

攻击者被称是在报复一名14岁男孩，称他是学校一霸。

《柯林斯英汉双解大词典》

He is a 14-year-old boy.

他是一个14岁的男孩。

youdao

And I worked with that account book, because one of the two slaves I write about in this new book called A Slave No More I publish their two narratives was indeed a young 14-year-old teenager, sold out of North Carolina--from Snow Hill, North Carolina, he was sold in 1860 to Hector Davis in Richmond.

我研究过这本账簿,因为我在这本新著《从奴隶到自由》中,引用了两名奴隶的自述,当时他们年仅十四岁,其中一个从北卡罗来纳州,从北卡罗来纳的斯诺希尔被卖掉,在1860年被卖给了,里士满的赫克托·戴维斯

耶鲁公开课 - 美国内战与重建课程节选