He has fundamental knowledge of mathematics.

His recovery was truly miraculous.

The mythology of Oyamatsumi is particularly interesting among Japanese myths.

He went to the beach wearing a tight-fitting men's swimsuit.

The day when the first snow fell was a special day.

Snow leopards are adapted to their high-altitude habitats.

The children were making a big snowman in the garden.

Hideyuki is my best friend.

Kōshun is my best friend.

Koichi is my best friend.