He says many of the Embera report they fled their homes after one or another of the groups tried to force them to collaborate in attacks against the rival group.

VOA: standard.2009.03.22

That's the important thing they're engaging students and students work as teams, collaborate and learn from each other.

最重要的是,它能使学生参与其中,以小组为单位工作，合作并互相学习。

麻省理工公开课 - 媒体、教育、市场课程节选

That's the important thing they're engaging students and students work as teams, collaborate and learn from each other.

最重要的是,它能使学生参与其中,以小组为单位工作，合作并互相学习。

麻省理工公开课 - 媒体、教育、市场课程节选