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。

You are twenty-one years old and a promising graduate student at one of the top universities in the world.

你二十一岁，是一个世界知名大学的很有前途的研究生。

That was where he lived with Sadie Juran, his wife of eighty-one years.

这是在他所住的萨迪朱兰，他的妻子的八十一年。

Born in 1846. He's forty-one years of age, which is mature for marriage.

生于一八四六年，现年四十一岁，这已是成熟的结婚年龄。

Imagine this: you are twenty-one years old and a promising graduate student at one of the top universities in the world.

想像一下：你是一位21岁的前途光明的研究生，且就读于一所世界一流的大学。

Imagine this :you are twenty-one years old and a promising graduate student at one of the top universities in the world.

设想一下：你二十岁，而且是世界一流大学的一名很有发展前途的研究生。