BIGGER SLIDER Refresh
the trapped air that supports a hovercraft a short distance above the water or ground
A straight line about which a body or geometric object rotates or may be conceived to rotate, A reference line from which distances or angles are measured in a coordinate system
a public promotion of some product or service
hard smooth-textured cheese; originally made in Cheddar in southwestern England
the part of the earth's surface consisting of humus and disintegrated rock