In organic chemistry, tritriacontane is a type of saturated hydrocarbon.

Since he started his new job, he's been lively as if he were a fish back in water.

In response to his actions, I felt anger and showed an inevitable reaction.

Unable to bear the pain, he had no choice but to scream.

He had a narrow escape in that accident.

He solved the problem in a scientific way.

This reaction occurs through a chemical process.

He is good at tactical thinking.

He exercises every day and leads a healthy life.

Fundamental knowledge of mathematics is necessary to solve advanced problems.