He is an expert in hydrology, and his research is highly valued around the world.

He was told by the doctor that he might have been infected with hydrophobia.

The Egyptian water lily is a very beautiful flower.

The Nymphaea lotus is known for opening its beautiful flower at night.

There is a beautiful fountain in the center of the park.

My friend lives in North Carolina.

This compound has high hydrophilicity, so it mixes very well with water.

Common vampire bats are often active at night.

The vampire bat is active at night and sucks the blood of mammals.

This waterway bridge has been a symbol of the town since ancient times.