去掉一个最高分，去掉一个最低分，最后的平均分为选手的比赛成绩。
The highest mark and the lowest will be abandoned and the average mark will be counted as the final result of the contestant.
最后得分为去掉一个最高分去掉一个最低分的平均分，满分为十分。
The full mark is 10. The final score is the average excluding one of the highest and one of the lowest scores.
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