He collapsed onto the bed, exhausted, and fell asleep with a thud.

It is important to consume enough protein in your daily meals.

I used pentane in a chemistry experiment.

My terminal suddenly shut down.

His talk was monotonous and boring.

This simple machine is useful for moving objects.

This drink is high in carbonic acid.

The posterior end of this organism has a very unique shape.

He was discouraged by the results of the exam.

He is working hard on the search for new ideas.