I often go to the sea on weekends.

I always relax at the seashore on weekends.

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

Radium is a radioactive chemical element.

I found a beautiful sea slug at the bottom of the sea.

Due to the thick fog, visibility is almost zero.

I ordered a coffee at the counter of this cafe.

He is a famous horse owner, owning many racehorses.

Onium compounds play an important role in chemical reactions.

My grey parrot is very smart.