问题描述：
请教英语牛人 帮忙看看这句话有语法错误么
Sports,considered as an indispensable form of entertainment in our life,have been playing a positive role in relieving people's pressure and making people healthier for thousands of years.主要是“considered as"这块叫不准.
Sports,considered as an indispensable form of entertainment in our life,have been playing a positive role in relieving people's pressure and making people healthier for thousands of years.主要是“considered as"这块叫不准.
问题解答：
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