Life is a series of ups and downs.

He does his work perfectly, dotting the i's and crossing the t's.

Let's cherish every encounter with the spirit of 'once in a lifetime'.

This shape is an antiprism.

This rock is gabbro.

He was arrested for a minor offense.

This wall is made of a special material that causes diffuse reflection.

This material has the property of diffusely reflecting light.

He is not a perfect hero, but rather like an antihero.

It is currently summer in the Southern Hemisphere.