He is devotedly working on that job.

He is traveling around the world in search of the elixir of life.

The red color in this painting is made with cinnabar.

His painting has beautiful red and blue hues.

His job is a daily monotony routine.

His way of speaking is very monotone.

He is a famous explorer.

The gentian flowers are blooming.

This drink has a strong carbonic acid.

My mother underwent surgery for gallstones.