Spectroscopy is an important means of investigating the properties of matter.

He is an expert in Classical Chinese text studies, and is good at interpreting ancient Chinese literature.

He is knowledgeable in all fields of learning.

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.

Special relativity is one of the fundamental theories of physics.

His long talk is just like 'a hundred days of sermonizing without a fart.'

An affricate refers to a specific type of sound in phonetics.

I worship the statue of Guanyin every day.