He saved the children from danger.

He drank water.

She is like a pure maiden.

Please calculate the volume of this cone.

The town was submerged in water due to the flood.

Due to the typhoon, my house was submerged in water.

The sound gradually attenuates.

This microphone has less sound attenuation.

We installed a tank to store rainwater.

This factory is treating wastewater with consideration for the environment.