1、thirteen是数字十三，作名词使用时，例句，Some people think that thirteen is an unlucky number. 一些人认为十三是一个不吉利的数字。
2、Thirteen months down, twenty-four years to go. 过去了13个月，还有24年。
3、He was one of thirteen children from a poor family. 他是13名来自贫困家庭的孩子之一。She had to fend for herself from the age of thirteen. 她从13岁起就得独立生活。
4、介绍自己也可以这样说，I'm English, and I'm thirteen years old. 我是英国人，我十三岁了。
