I was seven or eight years old and from that age on I really got keen at going to the sea and knowing about the ocean."

VOA: standard.2010.06.21

They always find a new angle, a different part to keen on especially this class. I think they are really keen on.

他们总能找全新的角度，和兴趣点,尤其是这个班级，我认为他们很有热情。

麻省理工公开课 - 媒体、教育、市场课程节选

They always find a new angle, a different part to keen on especially this class. I think they are really keen on.

他们总能找全新的角度，和兴趣点,尤其是这个班级，我认为他们很有热情。

麻省理工公开课 - 媒体、教育、市场课程节选