The doctor instructed him on the appropriate dosage.

He has a lot of hair, so he seems warm even in winter.

I take dietary supplements every day.

He is a person of strong vanity who reads self-improvement books.

Everyone, please have a good new year.

The concept of chemical equivalent is essential for understanding chemical reactions.

Let's use a radiation dosimeter to measure the radiation levels in this area.

The space complexity of this algorithm is O(n).

The time complexity of this algorithm is O(n).

Stoichiometry is a method for calculating the amount of substances in a chemical reaction.