We need mutual understanding.

He believes in 'an apple a day keeps the doctor away', so he eats fruit every day.

Research on xenotransplantation has the potential to open new frontiers in medicine.

This river has a lot of small stones.

This rock is a type called nepheline.

Mr. Hidachi is my best friend.

He started a fire using a flint.

This Ishiganto was installed to pray for traffic safety.

She has heterochromia of blue and green, which is part of her charm.

I was surprised to find a centipede in the garden.