This lecture will address the anatomy of the back and will at the same time present the most effective exercises against back problems.
本次课将讲解背部的解剖学知识，同时演示预防背部疼痛最有效的练习方式。
This lecture will address the anatomy of the back and will at the same time present the most effective exercises against back problems.
本次课将讲解背部的解剖学知识，同时演示预防背部疼痛最有效的练习方式。
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