Lunch containers were not necessary for school kids in cities.

午餐盒对于以前在城里上学的孩子来说并非必需品。

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Mobile phone used among school kids has become a problem for the school years, so one of the rules in our country says that school kids are not allowed to bring mobile phones to school.

小学生在学校使用手机已经成为一个问题，因此我国有一项规定是，小学生不能把手机带到学校。

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Unlike children in traditional schools, forest school kids spend their day studying ant hills or even climbing tall trees.

与传统学校的孩子不同，森林学校的孩子每天学习蚁丘，甚至爬树。

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"We want middle school kids to increase their level of achievement in science and math and for their teachers to increase their level of performance in teaching those subjects."

VOA: standard.2010.05.10

But, you know, I know someone who was a teacher in a Chicago public school for decades and lost his job, teaching math to high school kids, because he is gay.

我认识一个任职于,一所芝加哥公立学校几十年的老教师,被解雇了，他在高中教数学，仅仅是因为他是同性恋。

普林斯顿公开课 - 人性课程节选

I know a lot of kids from my high school went there because I went to a Catholic school.

我认识好多高中同学上了那所学校，因为我念的是天主教高中。

加州的大学 - SpeakingMax英语口语达人

The college and high school kids who do it in the evenings or as summer work.

FORBES: Waiting Tables Is More Than You Think It Is

Many of the private school kids talked more like the crack dealers from gritty dramas.

BBC: Magazine

It wasn't so long ago that many high school kids didn't have to worry about sex.

FORBES: Magazine Article