Sometimes the technology is so difficult to use and therefore it is important to has skilled and trained staff to operate it. (*) operate (*) has (*) use (*) technology
This is a companion discussion topic for the original entry at https://english.best/questions/25090,sometimes-the-utechnologyu-is-so-difficult-to-uuseu-and-therefore-it-is-important-to-uhasu-skilled-and-trained-staff-to-uoperateu-it/