The International System of Units is a system of units commonly used worldwide.

In order to solve this quantum mechanics problem, we need to find the eigenfunction.

He is interested in learning the international auxiliary language.

This dress is made of georgette.

The two-humped camel is an animal adapted to live in the desert.

The one-humped camel lives in the desert.

He is interested in paleozoology.

On a summer night, I could hear the cry of the Hachijō cicada.

His heart became empty.

His heart felt like emptiness.