A modern joint military operation is extraordinarily complex and requires extensive planning.

"This is not some extraordinarily complex problem to solve," he said.

Two main factors appear to have led to the military speed up their extraordinarily complex and carefully calibrated plan.

But they agreed that the proper response to fires in troubled buildings was an extraordinarily complex question.

These questions are next to impossible to answer because coaxing oil out of the ground is an extraordinarily complex undertaking.

This is an extraordinarily complex operation, and scientists are still a long way from understanding everything about it.

But the real evolving that takes place in other dimensions is extraordinarily complex, and beyond the means of human beings.

The universe is an entirely natural phenomenon, if extraordinarily complex.

Such goals are extraordinarily complex, of course, and have been set before.

The ecological questions are extraordinarily complex, and research into them will take years.