“四大天王”之一的赵剑华最近“改戏”,放弃单打,专攻混合双打,原因是两次大病,体力欠佳,这就让人颇觉可惜。如果把竞技水平、比赛经验、比赛结果比作“硬件”,那么保障 Zhao Jianhua, one of the “Four Kings”, recently “played the game”, giving up singles and specializing in mixed doubles because of two serious illnesses and poor physical fitness, which makes people feel pity. If the competitive level, competition experience, competition results as “hardware”, then the protection