Protein-degrading enzymes play a role in breaking down unnecessary proteins in the body.

Demography is an important tool for understanding various aspects of society.

This compound has a tetrahedral molecular geometry.

During winter, my energy bill significantly increases.

The Koizumi Shinjiro structure brought a new wind to Japanese politics.

When that scandal became public, his reputation was greatly damaged.

Have you ever been to Hanawa?

He looked like a god.

We were waiting in the waiting room until the concert started.

Zhenzong was a great emperor of China.