So that is really the design for the activity that we have been pursuing since dean done this convened educational technology task force in 1999.
这就是该活动的构思,自从1999年院长建设,教育技术队伍以来,我们一直在追求该目标。
麻省理工公开课 - 媒体、教育、市场课程节选
应用推荐
模块上移
模块下移
不移动