She is conducting research on the world's oldest profession.

He couldn't escape from the pursuer.

He is an expert in petrochemistry.

Sexual abuse is an act that is absolutely not allowed.

Tridymite is a mineral that is formed at high temperatures.

The World Health Organization is working to improve public health worldwide.

My wages are supposed to go up from next month.

The lenticular galaxy was named so because its shape resembles a lens.

A barred spiral galaxy can be said to be a work of art in the universe because of its beautiful shape.

An irregular galaxy is a type of galaxy that does not have a definite shape.