软式墙网球
a game played in an enclosed court by two or four players who strike the ball with long-handled rackets
同义词： squash / squash rackets
Other racket sports also emerged such as racquets, squash racquets, and eventually lawn tennis, which is widely credited to an Englishman, Major Charles Wingfield, who patented the equipment and rules for the game in London in 1874.
CNN: A short history of tennis: Henry VIII to Federer the great