A surface low formed within the monsoon trough on August 25.

By late on October 7, a surface low had formed east of Guam.

Outside the house a dull surface formed, a globe rapidly hardening around them.

As I stared the surface formed itself briefly into a face, an eye, part of a nose and a dark mouth.

He assumed it, because he and his policy council think that I designed those surface forms myself.

More generally, the surface formed by the sum of all the pitch circles as one moves along the axis.

Fortunately, many common surfaces form exceptions, and their areas are explicitly known.

Notice how its surface forms an angle, like a writing table.

In age, the surface often forms scales or warts.

My way took me past a pond so smooth and silvery its surface formed a mirror.