He boarded the fighter plane as a tail gunner.

Octans is one of the constellations in the southern sky.

Please calculate the quartiles of this data set.

His kimono was embroidered with his family's crest.

What does this sentence mean?

I'm feeling good today.

I practice writing Japanese essays every week.

This library adopts its own classification method.

He is very interested in mathematical analysis.

This plant requires a lot of moisture.