He is editing the article.

Her cheeks turned red.

Affine transformation is an important concept in geometry.

Her fluttering movements were just like a butterfly.

This software has a function to convert images into text.

I need to convert this file to PDF.

In mathematics, a variable forms part of an equation.

Polarized sunglasses are used to reduce glare.

There is a clear bias in his reporting.

This article is clearly slanted.