I have been to Zhangjiakou.

He is studying the traditional Baijiaxing (Hundred Family Surnames) of China.

He is participating in international negotiations as a member of the School of Diplomacy.

My favorite starter Pokémon are Bulbasaur, Charmander, and Squirtle.

Kazue is my best friend.

He is secretly active as a hentai manga artist.

Euclidean geometry forms the foundation of geometry.

I am majoring in auditory phonetics at university.

Articulatory phonetics is a study about the production of speech sounds.

Acoustic phonetics is the study of the physical properties of speech.