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.

In this area, a large tank is needed to store rainwater during the rainy season.

We had a picnic by the great river.

I enjoyed watermelon splitting at the summer event.

If you don't eat anything for a long time, you become hungry.

This ship is equipped with a new propeller.

She is good at painting with watercolours.