九的六次幂是多少?How much is the sixth power of nine?这位世界排名第九的选手必须有更出色的表现才能击退戴尔强有力的挑战。The world No. 9 had to raise his game to see off a strong challenge from Dale.天才是靠百分之一的灵感与百分之九十九的苦汗[努力].Genius is one percent, inspiration and...