This air intake improves the efficiency of the engine.

We are always aiming to improve our services.

We are always aiming for the improvement of our services.

The engine of this car is very powerful.

The efficiency of this machine is very high.

The car suddenly stalled.

He has a strong ambition and is always seeking self-improvement.

We should aim for the optimization of our operations.

We found a new way to optimize the project.