The use of this machine is simple.

We will use ammonia in this experiment.

We conducted a new experiment in science class.

This computer can be used by anyone.

We will conduct a new chemistry experiment tomorrow.

Are you really not going to use this unused laptop?

He is the most competent employee of our company.

Who is the user of this software?

This bottle is reusable.

It is reported that North Korea has conducted another nuclear bomb test.