He is thirty-one years old this year.

他今年三十一岁。

He is twenty-one years old this year.

他今年二十一岁。

The company was founded forty-one years ago.

这家公司成立于四十一年前。

She has been working at the company for twenty-one years.

她在这家公司工作了二十一年。

She has been teaching for fifty-one years and still loves her job.

她已经教书五十一年了，仍然热爱她的工作。

He is eighty - one years old.

他已经81岁了.

Are you twenty-one years of age?

你看起来很年轻，你今年多少岁了？

We lived in Qingdao for twenty one years

我们在青岛住了二十一年

Minimum one years working experience in international luxury brand hotel.

一年以上国际高星级品牌酒店相关岗位工。

I think one years ago, come back here, this page is very funny.

我想一年以后，再看这个页面会很好笑。