If your shoulders and upper back are collapsing into your neck, you need further practice to build your foundation.
如果你的肩膀和上背还会向颈椎挤压，说明你需要做更多的练习来加固根基。
If your shoulders and upper back are collapsing into your neck, you need further practice to build your foundation.
如果你的肩膀和上背还会向颈椎挤压，说明你需要做更多的练习来加固根基。
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