The theory of phonetic shift is an important part of linguistics.

He decided to undergo sex reassignment surgery.

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

He is facing many difficulties due to gender identity disorder.

This company demands uniformity in all projects.

This design has uniformity in color.

This vitamin is water-soluble, so it easily dissolves in water.

This cold is highly contagious, so please be careful with prevention.

Database transactions need to ensure their atomicity.

Flexibility is necessary for success.