We have been gradually bled for twelve years.

12年来，我们被逐渐榨尽了钱财。

《柯林斯英汉双解大词典》

The sentence of the court was twelve years' hard labour.

法庭的判决是十二年苦役。

《柯林斯英汉双解大词典》

Time flies, twelve years have gone.

时光荏苒，十二年的光阴又过去了。

youdao

She shook a little bell on the table, and a small black girl about twelve years old ran into the room.

VOA: special.2010.06.12

Really about ten or twelve years ago, I began to think of human rights, I've always been concerned with social justice and intersection of social justice and religion.

十年还是十二年之前，我开始思考人权问题，我一直很关注社会正义问题,还有社会正义与宗教交点上的问题。

普林斯顿公开课 - 人性课程节选

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

Today, a Kumbh Mela is held roughly once every twelve years in Hardiwar, Ujjian and Nashik.

BBC: India hosts the world��s biggest gathering

"Twelve years later we are still finding remnants of the attack on our country, " she said.

NPR: Possible 9/11 Plane Landing Gear Part Found In NYC

Twelve years later he would become China's first boxing gold medalist in the Olympics.

WSJ: 'Fists of Gold' Zou Shiming Boxing Match Fires Up China