I love organic chemistry classes.

Hydrocarbons are fundamental components of organic chemistry.

In organic chemistry, cyclodecane is a cyclic saturated hydrocarbon consisting of ten carbon atoms.

This ring-shaped road goes around the city.

Carbon is one of the basic elements of life.

This is an organic vegetable.

This color has a high saturation.

This sponge is saturated with water.

I bought three apples at the supermarket.

There are four apples in my bag.