When she was about eleven years old, she decided that she wanted to go to Africa to live with and write about animals.

VOA: special.2009.11.18

They still hold gold and right now the Federal Reserve System has about eleven billion dollars of gold.

他们仍然持有金子,并且现在，联邦储备系统拥有价值,一百一十亿美元的金子。

耶鲁公开课 - 金融市场课程节选

I did have a friend who was beat up by about twelve or thirteen kids who were all between ten and eleven years old,

我有个朋友曾被十二三个孩子殴打，都在十岁和十一岁之间。

大城市是否危险？ - SpeakingMax英语口语达人

About eleven thousand people work at the Mall of America.

VOA: special.2010.08.13

It's about eleven or twelve miles away.

大约十一,十二英里

耶鲁公开课 - 欧洲文明课程节选

"My background is a teacher. I taught young adults from, say,age eleven through thirteen for about fifteen years.

VOA: special.2009.10.12

The Ocean of Storms was about two thousand kilometers west of the place where Apollo Eleven had landed.

VOA: special.2009.07.29

About forty percent of all eighteen to twenty-four-year-olds or almost eleven and a half million were in school in October of last year.

VOA: special.2009.11.19

She and one assistant care for about nine hundred children ages four to eleven.

VOA: special.2009.08.13

Today we tell about the flights that followed Apollo Eleven to the moon.

VOA: special.2009.07.29

It carried eleven officers and a crew of about one hundred men.

VOA: special.2010.06.11

"There's about thirty percent of U.S.children are involved in bullying, and the latest numbers we have is about thirteen percent of them are bullies, eleven percent as victims and then six percent as both bullies and victims."

VOA: special.2010.05.06