He is working at the pithead.

Maintaining oral hygiene is very important for overall health.

We steered the ship towards the harbor entrance.

This mineral is called anhydrite.

A passerby was crossing the road.

Her red hair looked even more vibrant in the sunlight.

The teachings of Confucius and Mencius have a profound impact on our lives.

The scent of powdered incense is spreading throughout this room.

This spectrum shows the components of sunlight.

He divided the light into a spectrum using a special device.