'Oh, she's just a kid,' he said scathingly.

“咳，她还是个孩子呢。”他尖刻地挖苦道。

《牛津词典》

He made me realize that I was just a kid who had problems with behavior.

他让我意识到我只是一个有行为问题的孩子。

youdao

He is... just a kid.

他只是个……孩子。

youdao

"When I was just a small kid I went to Corning Glass works and watched the glass blowers there and was really mesmerized by that.

VOA: special.2009.09.16

He is just a brat spoiled kid.

但演得却是一个被宠坏的毛头小子。

麻省理工公开课 - 电影哲学课程节选

I just liked it since I was a kid.

我从小时候就开始喜欢。

喜欢的照片 - SpeakingMax英语口语达人

Justin Bieber is, of course, more than just a kid with a great voice.

FORBES: Is Justin Bieber's Bad Month Hurting His Brand?

You're just a kid, you do as you're told, they would tell her.

CNN: Pakistan's Malala: Global symbol, but still just a kid

She was a global symbol of girls' rights but also just a kid.

CNN: Pakistan's Malala: Global symbol, but still just a kid