He is in the third year of junior high school, or in other words, he is in the 9th grade in school years.

Epidemiology is the science that studies the occurrence and spread of diseases.

I am majoring in political science at university.

I am majoring in physiology at university.

He likes going to chamber music concerts.

He has a deep interest in numismatics.

It is reported that North Korea has conducted another nuclear bomb test.

He is looking for a proving ground to test his new theory.

These test results are showing unexpected outcomes.

We analyzed the data of the experimental group.