The shape of this chamfered cube is mathematically very interesting.

This chamfered cube is one of the shapes in mathematics, and it has the characteristic that all faces are equal.

He made many contributions in the realm of physics.

He was elected as the president of the United States.

In phonetics, a bilabial sound refers to a sound that is pronounced using both lips.

The vice president performs the duties of the president in his absence.

His health condition is good.

Bureaucracy plays an important role in the operation of the government.

This calorimeter is used to measure the heat capacity of a substance.

His country was occupied by the enemy.