We go to a seaside resort every summer.

He has a bicycle with two wheels.

Rintaro is my best friend.

Sarin is a type of nerve gas and is a very dangerous substance.

He is deeply interested in the philosophy of reincarnation.

He keeps making the same mistakes, as if he's going into an endless cycle.

He bought a new book on Amazon.

These two rooms are adjacent.

My house adjoins the park.

Vanillin, the primary constituent of vanilla, is characterized by its sweet aroma.