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

Proletarian literature is a type of literature that depicts the life and struggles of the working class.

He is working on his job with intense concentration.

He is an expert in molecular biology.

You should devote at least one hour to studying every day.

I am majoring in machine learning.

Next week, we will go to Kyoto on a field trip.

The students on a field trip visited the museum.

I bought a new study aid for my math exam.

This year's level of imports has significantly increased compared to last year.