His company was a short-lived regime.

I am attending cooking classes to learn the technique of filleting fish.

They are always together like the Three Musketeers at school.

When learning Japanese grammar, understanding the tri-grade conjugation is important.

He said, 'Each person has one life, like a pike or a shrimp,' and decided to live his life with care.

He is writing a thesis on fluid dynamics.

The tesseract represents a four-dimensional geometric shape.

The 正五胞體 is a simple convex polytope in four dimensions, having five vertices.

He made a model of a dodecahedron.

This regular tetrahedron is composed of equilateral triangles on all sides.