I decided that nothing should be done hastily, that things had to be sorted out carefully.

我决定不草率的采取任何行动，先得认真地理清头绪。

《柯林斯英汉双解大词典》

I decided that I was going to take early retirement.

我决定了我将提早退休。

《柯林斯英汉双解大词典》

I decided that if I learned of a company which used a lot of plastic, I'd send it an email urging it to cut back.

我决定，如果我知道有哪家公司大量使用塑料，我就给它发邮件，敦促它减少使用塑料。

youdao

"Obama as a presidential candidate was big news in Africa,and I decided that since we have a commitment in this library to collecting all kinds of information materials produced in Africa, we should immediately begin to collect materials about Obama, about how Africans responded to the Obama candidacy."

VOA: standard.2010.07.10

It was then in a matter of moments, that I decided that I had to find out why and become happier.

也就是在那时，我决定要找出原因，变得快乐。

哈佛公开课 - 幸福课课程节选

and I think that was really the turning point for me and my life when I decided that

我想当我决定要把我的余生奉献给戏剧的时候，

纽约的人们 - SpeakingMax英语口语达人

Last Tuesday, though, I decided that sometimes discretion is the better part of valor.

FORBES: Hunting for Health Insurance

And so I decided that was the character I wanted to portray more than the suffering woman.

NPR: Patti Austin, Singing Gershwin's Praises

Before I wrote a word of this story I decided that I absolutely needed a cup of tea.

FORBES: Magazine Article