We can curb juvenile delinquency by education.

我们可以育来控制少犯罪。

He is an expert in juvenile delinquency.

他是研究青少犯罪的专家。

The authorities are at their wits' end about juvenile delinquency.

当局对青少犯罪束手。

The problem of juvenile delinquency presented itself for the attention from the whole society.

少犯罪的这个问题引起了全社会的注意。