Heavy water is used as a coolant in nuclear reactors.

Every morning, I swim in the pool.

He is bad at remembering numbers.

Mercury is a metal that is liquid at room temperature.

Please tell me when the restaurant is empty.

My new rice cooker is very convenient.

The comet was illuminating the night sky.

Mercury is the planet closest to the sun in the solar system.

The water pressure in this area is very high.

This region is characterized by landscapes formed by erosion.