Char is my favorite character.

Just because the exam is coming up, there's no need to be in a hurry.

What is the focal point of this discussion?

He was consumed with worry about his job.

He was worrying himself about the results of the exam.

If the balance of the triple burner is disrupted, you may feel unwell.

In organic chemistry, pyruvic acid plays an important role.

In chemistry class, I learned about the reaction of pyruvate.