求翻译：练习总是枯燥又辛苦的，有些同学也因为生病或其它一些事情请假不来参加训练，看到那些空缺出来的位置，我心里也几次打起了退堂鼓，特别在我之前脚上受得伤开始疼起来的时候，退出的愿望也愈加强烈了。是什么意思？

Exercise is always boring and hard, some students because of sick leave or other things not to participate in training to see who vacated the position, I was also backed away a few times playing, especially in the feet before I get by injury began to hurt them when the exit has become even more inte

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Practice always arid laborious, because some schoolmates also fall ill or other some matters ask for leave do not participate in the training, saw these vacancies come out the position, in my heart also several times hit has drawn back the court room drum, specially in front of me on the foot receiv

Exercise is always dry and hard, some students because of illness or some other thing a leave of absence to attend the training, see the vacancy position, my mind several times to cheer up cold feet, particularly in the pain in my foot was injured before start up time, exit has become even more stro

Exercise is always dry and hard, some students because of illness or some other thing a leave of absence to attend the training, see the vacancy position, my mind several times to cheer up cold feet, particularly in the pain in my foot was injured before start up time, exit has become even more stro