This is a 六角四片四角孔ねじれ正多面體, in other words, a muoctahedron.

This is a model of a muoctahedron.

He has a strong sense of self-affirmation and always maintains a positive attitude.

The Brachiosaurus was a very large dinosaur.

The brachiosaur was a very large dinosaur.

I want to go to Barbuda.

She wears a hijab every day.

He needs to have surgery on his bladder.

Have you ever been to Vienne?

There is a small alcove in his room.