新聞英語/有一地方聽不明白，請指教！

at 1:33

What does he mean by saying remove his hat as a dean..

I asked him to remove his hat as a dean and actually comment on the obligation of the ( ？ )of that study, he said he couldn't.

所有跟帖： 

• validity of the study? -yingyudidida- ♂ (0 bytes) () 10/19/2012 postreply 07:39:53

• 3Q professor! -sportwoman- ♀ (0 bytes) () 10/19/2012 postreply 07:45:20

• 回複：新聞英語/有一地方聽不明白，請指教！ -3271963- ♀ (967 bytes) () 10/19/2012 postreply 16:44:43

• thank you 3271963 大俠拔刀相助！ -sportwoman- ♀ (0 bytes) () 10/19/2012 postreply 18:57:38