I am majoring in embryology at university.

He is an expert in embryology, studying the developmental processes of many kinds of organisms.

I will enter a university in Tokyo next year.

He is majoring in psychology at university.

He is specializing in physics.

When the earthquake occurred, we evacuated immediately.

Predicting the occurrence of earthquakes is difficult.

When the earthquake occurred, we evacuated immediately.

He practices vocalization every day.

He took a deep breath and then vocalized strongly.