(Speaking) But a study at the University of California Berkeley found that 3-D movies can cause eye strain.

VOA: standard.2010.02.21

It is so important, in fact, we are going to study it in 3.091 in detail next month.

它很重要，事实上，我们将在下个月仔细地学它。

麻省理工公开课 - 固态化学导论课程节选

It is so important, in fact, we are going to study it in 3.091 in detail next month.

它很重要，事实上，我们将在下个月仔细地学它。

麻省理工公开课 - 固态化学导论课程节选