Tryptophan is one of the essential amino acids that cannot be produced in the human body.

His sharp wit helped to solve the problem.

He dreams of ruling the business world.

In order to succeed, you need the right mindset.

Victor is my best friend.

I was surprised by his wild behavior.

He is an amateur train photographer as a hobby.

I love the Korean drama 'Dokkaebi'.

He was complaining of pain in his mastoid process.

His coracoid process was fractured.