An orangutan is a very intelligent animal.

He is good at writing short novels.

An identity matrix is a square matrix in which all the elements on the diagonal are 1 and all other elements are 0.

He is suffering from gallstones.

The button on his shirt was rent.

In this story, all of Tan's actions are absurd and incomprehensible.

He pursued wealth like a covetous person.

When an object is in free fall, its terminal velocity is determined by the balance between gravity and air resistance.

The International System of Units is a standard of measurement widely used around the world.

Kyrgyzstan is a country with charming beautiful nature.