"we have said that this is a dual track effort there has been an engagement track which we have been very actively engaged in, but there is also a pressure track,"

VOA: standard.2009.11.30

We also have active visualizations because there's a lot of research showing that if you're actively engaged in something that solidifies the learning objectives we're taking home.

我们同时也有主动性直观化,因为很多研究结果表明,如果你积极地参与,到一些使学习目标具体化,的活动中去的话,便能真正理解它。

麻省理工公开课 - 媒体、教育、市场课程节选

And also because, and this is also the reason why the power points are always available, I want you to be engaged in the material.

另一个原因，之所以提前提供幻灯片，我希望你们能充分理解材料。

哈佛公开课 - 幸福课课程节选