He drew an octadecagon shape.

The Schwarzschild radius is an important concept for understanding the characteristics of black holes.

I bought a new measuring spoon.

I wonder where my medical thermometer is?

He is a herbivore man, not interested in marriage or dating.

This new car is characterized by its streamlined design.

He learned the movements of the solar system using an orrery.

In that country, public executions are still carried out.

The Coast Guard plays a crucial role in maintaining maritime safety and order.

He was deeply thinking about metaphysical concepts.