I'm about thirteen.

我快要十三岁了。

youdao

In fact when Nixon came to China I was about thirteen or fourteen years old. I told my mother that I was going to come to China.

实际上，尼克松访华时我大概也就十三四岁，我对我妈说我将来会去中国的。

youdao

Since then he has written thirteen books about China.

从那以后，他写了13本关于中国的书。

youdao

About thirteen million hectares of forest were cut down or lost through natural causes each year in the last ten years.

VOA: special.2010.04.06

and I played until I was about thirteen years old.

然后一直打到大概十三岁的时候。

会打棒球吗？ - SpeakingMax英语口语达人

Louis XIV when he was a kid, he was about twelve or thirteen years old, he lived in Paris.

在他还是个十二,三岁的孩子的时候,他住在巴黎

耶鲁公开课 - 欧洲文明课程节选

One of the reasons we are so acutely vulnerable to EMP attack is because we largely stopped worrying about this phenomenon thirteen years ago.

CENTERFORSECURITYPOLICY: The terror next time

Short story about two neighbors in a California canyon, a thirteen-year-old boy, Dill, who lives with his mother, and a Japanese man, Sanjuro, who lives with his wife.

NEWYORKER: Ash Monday

ABSTRACT:Short story about two neighbors in a California canyon, a thirteen-year-old boy, Dill, who lives with his mother, and a Japanese man, Sanjuro, who lives with his wife.

NEWYORKER: Ash Monday