The fountainhead of this river is at the top of the mountain.

Mr. Xi is my best friend.

He dug a pit in the garden.

This bug is very small, isn't it?

Beautiful ornamental trappings were decorated under the collar of his kimono.

The green sea turtle spends a long time in the sea.

In Japanese grammar, predicates are part of independent words and can be inflected.

Understanding the structure of atoms is a fundamental part of physics.

I learned about valence in chemistry class.

He predicted the economic growth for next year.