And until BP finds a way to stem the flow, no one can estimate the full effect of this disaster on BP, its shareholders,or employees.

VOA: standard.2010.06.18

It tends to be a one-way flow of communication From the faculty to the students. It highly confined Students have limited opportunities to ask questions.

那是从教授到学生,单向的信息流动,这种模式限制了学生提问的机会。

麻省理工公开课 - 媒体、教育、市场课程节选