He was born as an illegitimate child and experienced many difficulties.

My grandfather used to till his privately-owned rice field.

He holds a personal grudge against me.

Using the private railway makes commuting very convenient.

Biocentrism is a theory that everything in the universe exists focusing on life.

The heliocentric theory is the idea that the sun, not the earth, is the center of the universe.

He believes in the geocentric theory.

Shimeji mushrooms grow naturally in my garden.

This culture medium helps the growth of bacteria.

In my district, a summer festival is held every year.