Zheng Qinwen pulled off an epic upset, winning the last seven games to stun Madison Keys and keep her unlikely US Open challenge going on Saturday. 中國網球選手鄭欽文上週六上演了一場史詩級逆轉。在比賽最后連贏7局的情況下，她爆冷擊敗麥迪遜·凱斯（Madison Keys），繼續書寫自己在美網賽場上的黑馬征程。 The Paris Olympics gold medalist from China triumphed 1-6, 7-6 (7/3), 7-5, defying the vocal pro-Keys crowd and further demonstrating that she is headed back to her best after a lengthy recovery from elbow surgery last year. 這位巴黎奧運會女單金牌得主以1-6、7-6（7/3）、7-5 的比分戰勝對手，頂住了現場支持凱斯的熱烈觀眾聲勢，也進一步證明自己在經歷去年肘部手術后的長期恢復后，正逐漸找回最佳狀態。 It has all made for an emotional spell in New York for the 23-year-old, who felt she "forgot how to compete" during her enforced absence but can now feel her competitive fire burning. 對於這位23歲的中國球員來說，這段紐約之旅充滿了情感波動。鄭欽文此前曾表示，在被迫缺席比賽期間，她一度感覺自己“忘記了如何...