I want to serve as a volunteer of this international tennis competition because I'm really passionate about tennis.

我想要成为这次国际网球比赛的志愿者，因为我真的酷爱网球。

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After winning the tennis competition, Jackson decided to turn professional, and was soon winning a lot of money in international competitions.

杰克逊赢得那次网球比赛以后，决定转为职业运动员，结果很快就在国际比赛中赢了很多奖金。

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Based on the latest conceptual model of achievement goals in sport, this study explores achievement goals of elite table tennis players in an important international competition.

根据新近提出的运动成就目标概念模型，在重大国际比赛中，对高水平乒乓球运动员的运动成就目标进行探讨。

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