A libero player is the one who is responsible for the return of service and the back field defense. A libero player is effective in reducing the offensive and defensive imbalance , increasing the competition of a volleyball match, and promoting the development of volleyball.
自由人,其职责是在比赛中专司接发球和后排防守,自由人在一定程度上改变了排球的攻守不平衡的状况,使比赛精彩程度提高,对排球运动的发展起到了巨大的推动作用。
参考来源 - 第29届北京奥运会女子排球比赛自由人运用的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The spectators cheered the tennis champion's return of service.
观众对这位网球冠军的接发球报之以欢呼。
Return of service belongs to the passive technique, comparing to serving the ball, in which active power is completely grasped in one's hand from the beginning of the game.
网球的接发球与比赛一开始主动权完全掌握在自己手中的发球相比较，是属于被动的技术。
Return the service description or information to the user of the advanced registry applications.
将服务描述或信息返回到高级注册表应用程序的用户。
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