Ryo is always clear-hearted and sincere.

Like his name, Ryo, he has the strength to endure hardships.

This plan is killing two birds with one stone because it can save both time and money.

I spread fertilizer in the garden.

I want to halve the amount of this recipe.

How much does this luggage weigh?

My colleague is very helpful.

He used a prism to analyze light.

My salary is paid once a month.

The concept of chemical equivalent is essential for understanding chemical reactions.