单语范例（未经PONS编辑处理）
Players must provide their own racquets and must wear shoes without heels.
en.wikipedia.org In the case where special structures such as racquets or streamers exist, these are separately measured.
en.wikipedia.org He enjoys hiking and bicycling, as well as winter and racquet sports.
en.wikipedia.org It was an indoor precursor of tennis played without racquets, though these were eventually introduced.
en.wikipedia.org The rules regarding racquets have changed over time, as material and engineering advances have been made.
en.wikipedia.org