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

His sister suffered for a long time because of noma.

Many dragonfly nymphs live in this pond.

She bought a new sukumizu.

The water deer is the same type of deer as the sambar.

Tamamizu is my best friend.

Mizuazusa is my best friend.

Please close the kitchen faucet.

His efforts were a drop in the bucket.

I often drink carbonated water.