It's difficult to solve this monomial expression.

He likes to take a walk in the park at dusk.

We should always remember the power of Kannon in difficult times.

Alicyclic compounds play an important role in organic chemistry.

He was interested in the ancient boustrophedon style of writing.

A tautology refers to a logical formula that is always true, no matter what values are substituted.

This building is influenced by the ancient Greek Doric style.

He loves watching American football games.

I am thinking of trying an electric smoking system.

This bacteria multiplies exponentially.