How can we keep them in school beyond the age of 10 or 12 ? so that they don't join street gangs?

如何让他们在10或12岁后还留在学校2,让他们远离街头帮派？

哈佛公开课 - 幸福课课程节选

You don't have to join them.

WSJ: The Intelligent Investor: Why Bondholders Should Be Worried

Merck and the settling lawyers say the lawyers will recommend their clients join the settlement and will withdraw from representing them if they don't.

FORBES: Magazine Article

You also can join alumni groups on LinkedIn or Facebook and connect with fellow alumni, even if you don't know them personally.

WSJ: Job Hunting in the Off Season