He is a long-time member of this company and has contributed for many years.

How much is the cost of this project?

He said an important message and left for his journey.

He is passionate about studying Sawndip.

This compound is stable in the solid phase.

Nonacosane is a type of saturated hydrocarbon in organic chemistry.

I plan to travel to Costa Rica next year.

Let's calculate the value of the cosine, which is one of the trigonometric functions.

According to the recipe, you need two teaspoons of sugar.

He is learning the old style of tea ceremony.