It will become heavily involved in training the Afghan military and police.

VOA: special.2009.04.11

I think it's important for the children to really become involved in things that maybe important to them.

我认为孩子们,积极参与,对自己有用的事情很重要。

麻省理工公开课 - 媒体、教育、市场课程节选

You see the lactose of course from milk, and then when you get down to the cellulose, and we're talking about starches and then fiber gets involved in here too, then cereals and vegetables become the primary source of these.

你们知道乳糖来自于乳类,当你研究纤维素的时候,以及我们在这里所说的淀粉和纤维,他们最主要的来源是谷类和蔬菜

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选