Char is my favorite character.

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

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

What is the focal point of this discussion?

He was worrying himself about the results of the exam.

He was consumed with worry about his job.

In organic chemistry, pyruvic acid plays an important role.

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