Crops such as corn, or wheat are very common types of a commodity crop.

He could be a winner if he applied himself but that is an understatement of his ability.

After seeing such tragedies, he was carrying a heavy burden on his mind.

A specialized writer who writes about your life is called a biographer.

If you have trouble breathing properly you may be in distress due to being asphyxiated.

During an operation, the doctor usually gives their patient an anesthetic to minimize any feeling of pain.

The athlete is very agile because he is very flexible.

The miracle sight of seeing a butterfly emerge from a cocoon. 

Someone in direct competition with you is your adversary.

Make sure you are wearing a warm sweater because it's cold outside.