I'd just thrown up, and when I sat down I got stage fright.

我刚好呕吐过，当我坐下时，我有些怯场。

youdao

When I sat down, my deskmate smiled at me, she introduced herself and then talked about many things about the class.

当我坐下时，我的同桌对我微笑，她做了自我介绍，然后谈论很多关于班级的事情。

youdao

And when I sat down to write my next piece I found myself hesitant, unsure of my writing, concerned about how it would be perceived.

当我坐下来写下一篇文章的时候我发现自己迟疑了，不确定我自己的文章，关心这篇文章将会被怎样理解。

youdao

When I sat down with him, he didn't perceive Maison Kayser as any threat at all.

WSJ: A Simmering Bake-Off

It all began at the age of 23 when I sat down one evening and made my first Goal Poster.

FORBES: The Magic of the 2013 Goal Poster...You'll Have to Read It To Believe It!

When I sat down to write up the results I had no idea that they might have quite such an impact.

BBC: By Hugh Warwick