Fundamental interaction is one of the most important forces in physics.

My father is an ichthyologist and has a deep knowledge about marine life.

The chances of him winning are a hundred to one.

He is the person who perfectly embodies the proverb 'ill weeds grow apace'.

He is the type of person who understands ten from hearing one.

He is an excellent keeper, good at guarding the goal.

Seeing his deed, I was surprised.

He raised his sword to attack the enemy.

He was wrapping the present.

He is in his unlucky year, so he needs to be particularly careful.