It is important to thoroughly heat the meat.

Thermonuclear reactions are the source of the sun's energy.

He understands the basic concepts of thermodynamics.

When the volcano erupted, a glowing cloud covered the sky.

He earnestly desired to get that job.

He earnestly desired that job.

The source of heat for this building is solar energy.

He is studying thermodynamics in depth.

His enthusiastic cry livened up the entire venue.

His dream is to fly in the sky in a hot-air balloon.