His art style is unique, it's neither fish nor fowl.

Carbon is one of the basic elements of life.

The formation of a mountain requires millions of years.

He formed a new team.

Understanding the structure of atoms is a fundamental part of physics.

He always buys cheap things, so in the end, it becomes 'penny wise and pound foolish'.

Acidic oxides react with water to produce acids.

Aluminum is an amphoteric oxide, it reacts with both acids and bases.

Peroxides play an important role in chemical reactions.

I will participate in an obstacle race this weekend.