本人需要一篇简单的英文的轮滑简介

Roller skating is a recreation and a sport of gliding over a surface on roller skates, which have wheels built onto a special boot. Formerly, roller skates were made of metal wheels attached to frames that were clamped onto conventional shoes. An adaptation of ice skating, roller skating is popular throughout the world, especially in North America, Europe, and Australia, and has increased in general popularity since the 1930s with the building of indoor rinks. The introduction in the 1970s of plastic, polyurethane wheels, which allow for greater freedom of movement and more intricate maneuvers, boosted the popularity of roller skating, both indoors and outdoors. Manufacturers borrowed further from the design of ice skates to produce in-line skates, also called Rollerblades after a principal manufacturer of the equipment. The wheels on in-line skates are aligned in a single row, and the faster, more agile skates became popular during the late 1980s and early 1990s. Another modificati