stručno

1. expertly; professionally
   Majstor je stručno popravio grejanje. — The repairman fixed the heating expertly.
   Tu temu treba stručno objasniti. — That topic needs to be explained by an expert.
2. (of training, qualification) professionally; in terms of one's profession
   Radnici su stručno osposobljeni za ovaj posao. — The workers are professionally trained for this job.