Mizutsukasa is my best friend.

The flow of the Wei River is quiet and beautiful.

There is a lot of spirogyra floating in this pond.

In this chemical reaction, hydration plays an important role.

This area is rich in subterranean rivers, which serve as a source of groundwater.

The color of a crow's feathers is black.

There are a lot of gac growing in my garden.

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

He was my student, but now he has become so proficient that it can be said 'the student has surpassed his teacher.'

Since he started his new job, he's been lively as if he were a fish back in water.