This maneuver is very complex.

He is good at operating that machine.

She had two apples.

What is the volume of this box?

This math problem requires finding the product.

It became as cold as the snow piling up.

The operator is operating the machine.

The operability of this new software is very excellent.

This robot can be remotely controlled.

He and his twin brother are as alike as two peas in a pod.