There are a lot of pebbles scattered on this riverbank.

When I heard about his success, I came to respect him even more.

He was ignoring my opinion.

He continued to explain earnestly.

Her dress was a beautiful indigo color.

He is deeply interested in pragmatics, especially in Goyouron.

I want to go to Sweden.

Down quarks play an important role in particle physics.

A quark is a type of elementary particle.

The top quark is the heaviest quark in particle physics.