There is a red mailbox in front of my house.

In mathematics, a mapping represents a correspondence from one set to another.

He bought a new motorcycle.

The intellectuals deeply discussed this issue.

His description is very detailed, making you feel as if you are there.

It is estimated that the project will take about two years to complete.

We need to estimate next year's sales.

He is fulfilling his role as a window to society.

I purchased this product from a reliable vendor.

I am the person in charge of this project.