Ammonium carbonate is a compound commonly used in inorganic chemistry.

My grandfather used to work in charcoal production.

We have developed a new method to produce charcoal from wood.

This factory manufactures iron using coke.

He likes to take a walk in the park at dusk.

I always use binchotan charcoal when I grill meat.

I always use binchotan charcoal when I grill meat.

We should always remember the power of Kannon in difficult times.

This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.