This ancient document states that the power of the ancients was sealed.

He sealed the old book.

Discord has arisen between them.

All his efforts were in vain.

The wind blew strongly, creating beautiful wind ripples on the surface of the lake.

There is a large power plant in this area.

Nuclear power generation is responsible for a part of energy supply.

We decided to install a personal electricity generation system.

I have an emergency generator at my house.

Like the wind, his feelings always change.