Yasushi is my best friend.

Hosoku is my best friend.

Hoku is my best friend.

Yasuhiro is my best friend.

Yasuyuki is my best friend.

He likes to take a walk in the park at dusk.

The grey matter of the brain is the central part of information processing.

He has psychopathy, making it difficult for him to understand social rules.

Amorphous substances have characteristics different from crystals.

The cytosol is the liquid part inside the cell, and many enzymatic reactions occur here.