Ten years ago, I spent three weeks at a summer camp and had the best time of my life.

十年前，我在一个夏令营度过了三周，那是我一生中最美好的时光。

youdao

This was a new effort for us at the time, so in 2009 I spent a lot of time trying to understand more about teaching: How do you identify the best teachers?

这是我们当时一个新的努力工作，所以在2009我花了更多的时间试图了解关于教学工作：你如何确定最好的老师？

youdao

I believe the time is some of the best-spent time I can give to the class.

我相信这些时间是我所能够给予同学们的最佳时间之一。

youdao

So I've spent some time thinking about how I could best advance the cause of change and progress that we so desperately need.

NPR: Obama Begins to Plan White House Run

But I spent so much time trying to decide the best word to describe them.

FORBES: Quiet Heroes: The Lessons of Our Fathers

"The statement from the Catholic Heads Association sets out what is patently obvious, that the best option is regulation - that is what I have spent my time in office trying to bring about, " she said.

BBC: Principals back selection tests