There are many cold days in Hell.

Hell if I know!

The basketball team had many held balls during the game.

The helium flashes in the star's core were observed by astronomers.

The helicopter buckets were filled with water to fight the forest fire.

Helicopter moms are known for being overly involved in their children's lives.

Hell weeks are the most challenging time of the semester.

We had to endure many hell nights during our military training.

Hell Weeks are the most challenging part of the training program.

They were matches made in hell.