He understands the importance of learning.

He is majoring in psychology.

Gaku is my best friend.

He has a deep interest in archaeology.

The one-eyed goblin was dancing in the forest.

The radius of this circle is 5 centimeters.

Let's learn the method to derive the initial letter of a mora using a semi-voiced sound mark.

It's difficult to pronounce the semi-voiced sounds in Japanese correctly.

He was a sumo wrestler of the third rank.

The first half of this year was very busy.