hobby是什么意思

用法例句

A study on the amateur track and field team in higher institutes;

对高校业余田径队的研究

Inaccordance Problems Encountered by Amateur Tennis Players While Batting;

业余网球选手抽击球中协调问题探析

The article analyzes the injuries in the training process for 15-18 years old of amateur track and field athletes to the Yangzhou middle schools in three years nearly.

对扬州中学近3年来15—18岁业余田径运动员在训练过程中的受伤情况进行分析与研究,找出原因并提出预防措施。