He showed me his new toy.

That idea is just right, exactly what we needed.

He is a perfectionist, and his approach to work is very strict.

This programming language is said to be Turing complete.

His performance was perfect and without blemish.

In mathematics, a perfect number refers to a number where the sum of its divisors, excluding the number itself, equals the number.

He is immersed in the study of panmagic squares.

This fish is completely farmed, and no capture is done in the natural environment.

My documents were sent by mail.

The lifestyle of the super-rich is so luxurious that ordinary people can't even imagine it.