Sometimes people do crazy things to show how much they love someone or something.
This woman really loves tennis. To show how much she loves tennis, she made this costume to wear to a tennis match. Her dress is made tennis balls.
She might look a little silly, but what she's doing is not that strange. Many sports fans will wear something strange or crazy to sports games to show how much they love a sport or a sports team.
Sports fans don't just change their clothes. Sometimes they paint their faces with their team's colors, or write letters on their stomachs to cheer their team on. Fans like these make going to sports games fun.
服裝 (fu2 zhuang1)
Terry watches every Tom Cruise movie. He's Tom Cruise's biggest fan.