He is widely recognized as an expert in dogmatics.

He is majoring in the study of national law.

He understands the basic concepts of thermodynamics.

We should always remember the power of Kannon in difficult times.

He was swimming freely as if he was a fish playing in the pot.

He was out of breath after running a long distance.

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.