知青的`英文：
Educated youths
educated是什么意思：
adj. 有教养的；受过良好训练的
An educator must first educate himself. 教育者必须自己先受教育。
Rural education reform is a hot spot in education research. 农村教育问题是目前教育界研究的一个热点。
social psychology of education.教育社会心理学 。
He was handicapped by lack of education. 他因文化水平低而吃了亏。
They're cutting funds for education.他们正在削减教育经费。youths是什么意思：
n. 青春（时期）；初期；青年们
The Flight of Youth青春飞逝
My youth and youthful strength fled long ago.我的青春和青春的活力早已消失。
The youth has plenty of go in him.这个年轻人干劲十足。
You should consider his youth.你应体谅他的年轻。
a nation in its youth建国初期
