Stem cell research is opening up new frontiers in medicine.

He was excited about the adventure to the unknown world.

Japan and China have been trading for a long time.

A barred spiral galaxy can be said to be a work of art in the universe because of its beautiful shape.

He is hoping for a bright future.

The cell nucleus holds genetic information.

He is doing his best for the defense of the country.

His desire is uncontrollable.

His rule was the epitome of evil tyranny.

Due to his obstruction, we were unable to proceed with the project.