classes:  lecturer. I really like the knowledge that he teaches, although the subject is dry, I can still pay attention to listen.  curriculum. I really like the knowledge that he teaches, although the subject is dry, I can still pay attention to listen.  facility. I really like the knowledge that he teaches, although the subject is dry, I can still pay attention to listen.  general. I really like the knowledge that he teaches, although the subject is dry, I can still pay attention to listen.