This heirloom tells the history of our family.

We enjoy family reading every night.

The concept of chemical equivalent is essential for understanding chemical reactions.

My company specializes in the manufacture of fine chemicals.

Chemotransmitters play an important role in the transmission of information between nerve cells.

Stoichiometry is a method for calculating the amount of substances in a chemical reaction.

No chemical flavoring is used in this ramen at all.

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

Studying the thoughts of the Hundred Schools of Thought is very important in understanding ancient Chinese culture.

He is a famous manga artist.