There are also many other problems of the left behind children, such as having no ability to protect themselves, unhealthy lifestyles, spending too much pocket money and too much time on the Internet and so on.

留守儿童还有很多其他的问题，比如没有能力保护自己，不健康的生活方式，花太多的零用钱和太多的时间在互联网上等等。

youdao

So as not to damage your pride, I should not interfere in the matter of left behind children.

为了不伤害你们的自尊感，我是不应该管留守儿童的事情。

youdao

She left her children behind with a heavy heart.

她十分难过地丢下了她的孩子们。

《牛津词典》

He says particular care must be given to the thousands of children who were left behind, many of whom have become traumatized by the events.

VOA: standard.2009.09.25

3% of black school children in fourth grade are left behind proficiency levels.

做了评估，其中，在四年级的黑人孩子里,63%阅读能力较差，58%的西班牙孩子。

麻省理工公开课 - 媒体、教育、市场课程节选

"Despite remarkable economic growth in scores of countries over the past 20 years, shocking disparities are also growing, with the poorest children left further behind,"

VOA: standard.2009.10.08

Selamawit suggests that the money should be reinvested into the orphanages to help those children left behind.

BBC: Africa

They left two other children behind in the village with Mr Mohammed's mother and his teenage brothers and sisters.

ECONOMIST: Somalia��s woes

Some families also face heavy legal bills when they adopt children left behind.

BBC: Hidden costs to crime victims