Meaning
to work on, engage in, occupy oneself with
Example
اِشْتَغَلَ بالطِّبِّ سنواتٍ طويلةً He worked in medicine for many years.
اِشْتَغَلَ بِـ
to work on, engage in, occupy oneself with
اِشْتَغَلَ بالطِّبِّ سنواتٍ طويلةً He worked in medicine for many years.