For how many years?

有多少年了？

youdao

We elect a U. S. Senator for how many years?

我们多久选一次联邦参议员？

youdao

We elect a U. S. Senator for how many years?

问：我们选联邦参议员多少年一次？

youdao

How had the country existed half-slave and half-free for so many years, Lincoln asked.

VOA: special.2009.06.11

I welcome that because I've seen this subject for God knows how many years.

我鼓励你们这么做是因为我教这门课,已经很多年了

耶鲁公开课 - 基础物理课程节选

So biomedical engineers have been working for many years on how to design replacement parts for joints like the hip: the artificial hip is the most well developed of those.

因此,生物医学工程师花了很多年时间,致力于设计像髋关节这样的关节替代品,尤以人工髋关节的研究最为成熟

耶鲁公开课 - 生物医学工程探索课程节选

Another survivor of the camps, Zana Santicario-Saatsoglou, described how for many years she was unable to tell her story.

NPR: Jews In Greece Mark WWII Nazi Deportation

At the moment, Robbins has no idea how this more exploratory, biographical show might look, but he has known for many years how he would like it to end with a spectacular act of theft that he calls his holy grail.

NEWYORKER: A Pickpocket��s Tale

Ms Stoddern said the council had known for years how many people lived at her home, and taxpayers' money used to prosecute her would be better spent housing the homeless.

BBC: Camborne homeless shelter owner fined for overcrowding