比赛在时光中改变了。科技使改变无可避免:球拍更大、更轻、更结实,球鞋每隔几年更优良。人体技术同样进步显著:每一代网球手都比上一代肩宽腿长,球员的内体也获得提升,负荷训练令他们强壮,营养膳食令他们耐力持久。比赛理所当然,不得不变。 The game changed in time. Technology makes changes inevitable: racket bigger, lighter, stronger, shoes every few years more excellent. The same impressive advances in body technology are made: each generation of tennis players is wider than the previous generation’s shoulder width, with the inner body of the player also being promoted, the load exercised to make them strong and their dietary well endured. Of course, the competition had to change.