有一场球,红方开局频频得手,白方开局出师不利,直到21分钟时,双方的比分是9∶5,红方领先,场上态势如图1所示:轮及10号队员击球,⑩球进场在四角压线,①球顶②球双出界,②球进场到二角藏身,③球在二门后给⑨球摆双杆,④球进场压线,⑤球到三门一号位,⑥球进场压线,⑦球进场也到二 There is a ball, the Reds start frequently succeeded, White started unfavorably, until 21 minutes, the two sides the score is 9: 5, Red Square lead, the court situation shown in Figure 1: round and 10 players hit the ball, ⑩ ball approach pressure at the four corners, ① ball top ② double out of bounds, ② ball into the corner to hiding, ③ ball in the back door to the ⑨ put double-rod, ④ ball into the line pressure, ⑤ ball to three Door number one, ⑥ ball approach pressure line, ⑦ ball into the field also to two