Environmental issues are becoming more serious day by day.

He sent important information by telegraph.

Has he ever seen a divine horse?

Symbiogenesis is an important concept in biology, referring to the process where different species coexist to create a new species.

Theocracy refers to a system where the will of God determines the direction of politics.

He was staring into the abyss of his own heart.

His new song is very moving.

He is learning the ancient art of stealth.

There is a new bed in my room.

I felt a deep heartache due to his betrayal.