english: (Laughter) Not that I'm a bad teacher, but I've been studying and teaching about human waste and how waste is conveyed through these wastewater treatment plants, and how we engineer and design these treatment plants so that we can protect surface water like rivers.
non_english: (Smeh) Nije da sam loš predavač, ali učio sam i predavao o ljudskom izmetu i kako se izmet prenosi kroz ova postrojenja za prečišćavanje otpadnih voda, i kako mi gradimo i dizajniramo ova postrojenja za prečišćavanje, kako bismo zaštitili površinske vode, poput reka.