How to use "complicated" in a sentence

"You don't understand," Hastings shouts, "it's more complicated than that!"

All the reasons she'd given to Cham ran through her mind, but how could she explain them to Niki? It was really complicated.

Each time, Leti typed in a complicated code to let them in, as well as waiting by the recognition screen

It was extraordinary - a sea of complicated instruments and equipment.

Behind him, Sala could just see a complicated collection of screens.

With seven massive production numbers, five major variety acts, forty-two girl dancers, forty-two boy dancers, fifteen showgirls, two boy singers, two girl singers (one temperamental), forty-seven crewmen and technicians, a twenty-piece orchestra, one elephant, one lion, two black panthers, six golden retrievers, and twelve white doves, the logistics were mind-numbingly complicated, but a year of arduous labor was evident in the slick and faultless unfolding of the program.

Gradually Michael's displeasure over her desire to succeed was complicated by a darker emotion: He grew jealous of her smallest achievements

"But I think it's more complicated than that

A kind of arm held a complicated metal case, out of which the Heat-Ray flashed as it killed anyone who was still moving