His flaring up again means that he is immersing himself in that hobby again.

When winter comes, the cost of light and heat increases.

Thermal pollution can potentially have serious effects on marine life.

This computer is equipped with a high-performance heat release system.

This machine releases a large amount of heat while operating.

Lassa fever is a serious infectious disease that is particularly prevalent in West Africa.

My friend contracted Q fever.

He and she are in the midst of passionate love.

He is passionately in love with her.

He is an ardent music lover.