When I was a little kid I rolled down a hill and broke my leg.

我小的时候曾滚下山摔断了腿。

《柯林斯英汉双解大词典》

When I was a little girl, there was this mean boy who called me fatso all the time.

我还是小女孩的时候，有个很坏的小男孩老是叫我胖子。

《柯林斯英汉双解大词典》

I remember when I was a little girl, how you held me tightly when I couldn't sleep.

我记得当我还是个小女孩的时候，当我睡不着的时候，您紧紧地抱着我。

youdao

He started even earlier. "When I was a little kid, I found a couple of traps washed up on the beach and I was mesmerized by it,you know.

VOA: standard.2010.07.20

It's a... I'd hate to learn all by, when I was a little kid, when I learned, but...

我小的时候很讨厌学，我学的时候…

享受冲浪 - SpeakingMax英语口语达人

I'm a little short but I was doing OK. But I did do some research when I saw this book last year.

虽然款项很少，但是我还做得不错,我去年看这本书的时候，做了些调查。

普林斯顿公开课 - 人性课程节选

Once when I was a little boy I received as a gift a toy cement mixer.

NEWYORKER: All That

"When I was a little kid, I used to build paper planes, " he tells me.

BBC: Paragliding in Mosul, a way to shake off recent past

"When I was a little boy, I wanted so badly to drive a car, " he said.

WSJ: Imitation Is the Sincerest Form of Rebellion in China