Keeping a person on a short leash means keeping him or her under close control.

VOA: special.2009.03.29

I'd like to close with a short story of recent interaction that I had with a video over the internet.

我想用一个小故事来结束,是最近我关于网络视频的互动作用。

麻省理工公开课 - 媒体、教育、市场课程节选