You'd better learn a trade while you are young, so that you may not cheat for a living when you are old.

你最好趁年轻时学一点手艺，以便在年老时不靠行骗为生。

youdao

Contrary to the old warning that time waits for no one, time slows down when you are on the move.

与古话告诫的“时间不等人”相反，当你在移动时，时间会慢下来。

youdao

You need feel no care for the coming tomorrow: when you are old, you receive a pension.

你不必为明天担心：当你老了，你就能领到养老金了。

youdao

To what extent could-- if I were to meet you when you were five years old I could describe the way you are now?

又在多大的程度上可能,如果在你五岁的时候我见过你,那我可以描述出现在的你吗

耶鲁公开课 - 心理学导论课程节选

When are you deemed old enough to know what it is you would like to study and don't get useless figures shoved down your throat by people who seem to think that everyone in the world cares about politics and economics so they all will study it, regardless of whether they are studying art?

BBC: The A-level student

And when you are 67 years old, eight months is a long time.

NPR: Scholar Recalls Captivity in Iranian Prison

You might think that to pretend to be simply of average intelligence when you are twelve years old like me and have the level of a senior in college is easy.

NPR: Excerpt: 'The Elegance Of The Hedgehog'