举行博士生论文答辩会: give the doctoral student an oral examination on his dissertation
院: 名词1.(院子) courtyard; yard; compound 短语和例子场院 threshing ground; 居民大院 neighbourhood compound; 前院 front yard; 我把汽车停在后院。 i parked the car in the backyard. 院里种了几棵枣树。 there are some jujube trees i