I just did it for a laugh, but it got out of hand.

我只是开开玩笑，然而却一发不可收拾。

《牛津词典》

The boys didn't mean any harm—they just did it for a lark.

那些男孩并无恶意—他们只是闹着玩罢了。

《牛津词典》

I know, because I sort of just did it.

我了解这些，因为我从某种程度上做了同样的事情。

youdao

"We just were there and we just did it. We had basically no huge plan."

VOA: standard.2010.05.18

So I just did it."

于是我就这么做了“

耶鲁公开课 - 金融市场课程节选

If you have a white wall, that's when we did Zen meditation, it's easier if you're just facing a wall.

如果家中有面空墙，我们可以进行坐禅，面对空墙会相对容易。

普林斯顿公开课 - 人性课程节选

"He just did it again, " says one conservative House Democrat, marveling at a politician who is extremely hard to kill.

CNN: There's Something About Linda

They just did it--hiding billions of dollars in expenses in plain sight.

FORBES: WorldCom And The Mystery Of Buford Yates

We just did it because it was the right thing to do.

FORBES: The Right Thing to Do