Hydrocarbon is a basic element of chemical reactions.

He lined his pockets with that project.

We should always remember the power of Kannon in difficult times.

He threw the cigarette butt into the ashtray.

The National Research and Development Agency plays a crucial role in advancing science and technology.

He solved a large number of problems.

I love mathematics.

In the traditional Japanese number system, Muryo-taisu represents a very large number.

He is good at arithmetic.

He absorbs new information like a sponge soaking up water.