Research on cold fusion is still controversial.

Yuu believed in divine help from God.

Yuu always helps me.

Yu is not only his name, but also represents the courage that always exists in his heart.

The number of nuclear-armed countries is increasing worldwide.

Universal gravitation affects all objects on Earth.

Could you tell me your postal code?

This eigenfunction is one of the fundamental concepts of quantum mechanics.

Surface meteorology is a part of meteorology that studies the interaction between the surface and the atmosphere.

He admits that he is bad at athletics.