U.S.President Barack Obama says the movement to reform the U.S.health insurance system is gaining momentum with the help of politicians who have crossed political lines to support it.

VOA: standard.2009.10.10

The council on educational technology in MIT has Been doing that for MIT with the help from a couple Of consultants who've actually volunteered their time.

麻省理工教育技术委员会,在一些顾问的帮助下做着这项工作,这些顾问自愿牺牲他们的时间参与其中。

麻省理工公开课 - 媒体、教育、市场课程节选