The transmission of this car is very smooth.

My new computer is very fast.

The traffic light turned red, so I stopped.

He is fulfilling his responsibility as a president who controls state affairs.

My father is an aircraft pilot.

He works as a fighter jet pilot.

In psychology, it is important to understand the mechanism behind human behavior.

This engine is old, but it still works.

I bought a drink from the vending machine.

The airplane is parked in the aircraft parking area.