This system is very efficient.

This algorithm significantly improves the speed of data processing.

NASA is an acronym, which means 'National Aeronautics and Space Administration'.

This part is made of rubber.

I have visited the city of Qom in Iran.

She gave him his first orgasm.

I am working in business.

As members of society, we should fulfill our responsibility to protect the environment.

I went to see the showroom of the new apartment.

The mechanism of this machine is very complex.