He picked up a shell on the beach.

Learning Modern English is important for smooth international communication.

I am studying Modern English.

Cold fusion is a part of physics and is a phenomenon that is not yet fully understood.

Research on cold fusion is still controversial.

The development of fusion reactors could potentially be the key to solving future energy problems.

This house is old, but you can feel its character.

The maximum memory of this computer is 16GB.

The daimyo was the ruler of that region.

Please substitute a value into this equation.