The elderly have a happy life in their old years.

老人们晚年过着幸福的生活。

youdao

Because the company has been taking the tradition of history and compromising the modern scientific technology for 30-old years, the company gets stronger day by day.

三十余年来，公司秉承历史传统，融入现代科学技术，日益发展壮大。

youdao

He was forty years old. Over the years,historians and medical experts have tried to explain the cause of Poe's death.

VOA: special.2009.02.02

I just have cycled all my life since I was about 11, so it's 50 old years now.

从我11岁开始我就一直骑自行车，现在已有50年了。

自行车是我的朋友 - SpeakingMax英语口语达人

Now these ideas of classes, object-oriented programming, data abstraction, are about 40 years old, they're not new ideas.

面向对象编程的概念，数据抽象的概念，都是40年前就有的老东西了。

麻省理工公开课 - 计算机科学及编程导论课程节选

One was two years old, one was one years old, one four years old.

NPR: Iraq Finishes Own Investigation of Deaths in Haditha

It's a result of things that have happened long before they ever got to us at five years old or six years old.

NPR: Nutrition, Business At Odds in U.S. School Cafeterias

Lacey was four years old and Dewey was two years old when their little brother Egbert was born.

NPR: Edward R. Murrow: Broadcasting History