Japan's exclusive economic zone plays a crucial role in the management and utilization of marine resources.

He believes that he has extrasensory perception.

In behavioral sciences, the use of metatools plays a crucial role.

He is writing a thesis on dialectical materialism.

It is important to distance yourself from antisocial forces.

Abstract algebra is a branch of mathematics that studies algebraic structures.

This country has fallen into anarchy.

The passive form in Japanese is used differently from English.

This quadrilateral is a square.

By learning the imperfective form, you can understand Japanese grammar more deeply.