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

He absorbs new information like a sponge soaking up water.

This compound contains a sulfhydryl group.

I buy water at the water store every day.

Water Margin is one of the four great literatures of China.

I saw various aquatic creatures at the aquarium.

Groundwater pollution has become a serious environmental problem.

Kazumi is my best friend.

I have been to Suishiei.

The European water vole is a small mammal native to Europe.