胸膛、背部和脊柱都是特别敏感的区域。

The chest, back and spine are particularly sensitive areas.

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人体工学的设计有利于你的背部和脊柱，Napshell的超舒服床垫能适应各种不同的体型和高度。

Ergonomically designed to be good for your back and spine, the Napshell bed's super comfy shaped mattress will fit a wide range of body types and heights.

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中斜方肌和菱形肌(贯穿上背部的肌肉)将肩胛骨向脊柱的方向拉，从而打开胸廓。

Muscles spanning the upper back, the middle trapezius and rhomboids, pull the shoulder blades towards the spine to open the front of the chest.

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