He is using a new machine.

The manipulation of this device is difficult.

He took advantage of the opportunity to start a new project.

Pus came out of his wound.

Pus came out of his wound.

I always relax at the seashore on weekends.

Ruthenium is part of the platinum group and is a hard, white metal.

We will use cesium in this chemical experiment.

Rhenium is a rare metal with stable characteristics at high temperatures.

Thallium is one of the chemical elements, and its symbol is Tl.