His actions demonstrate his deep compassion.

Jion, have you finished your homework for today yet?

This mineral is called anhydrite.

He is an expert in embryology, studying the developmental processes of many kinds of organisms.

The process of embryogenesis is very complex, with continuous cell division and differentiation.

He underwent surgery on his soft palate.

Because his uvula is long, he sometimes feels like his throat is blocked.

We built a new house in the suburb.

This area once suffered from severe pollution.

The palatine bone plays an important role in determining the shape of our mouth.