慢性颈部和背部疼痛 Chronic neck and back pain
用于腹部和背部 for abdomen and back
背部和脊柱 the back and vertebral column
腹部、下背和骨盆部位未特指的浅表损伤 Superficial injury of abdomen, lower back, and pelvis, part unspecified
腹部、下背和骨盆部分挤压伤和创伤性切断 Crushing injury and traumatic amputation of part of abdomen, lower back, and pelvis
你应该能够在背包和背部之间移动你的手。
You should be able to move your hands between the backpack and your back.
此外，尽管人类直立行走已经有数百万年的历史，我们的脚和背部仍在两足行走的姿势中艰难斗争，无法轻易承受过长的四肢持续施加的压力。
Moreover, even though humans have been upright for millions of years, our feet and back continue to struggle with bipedal posture and cannot easily withstand repeated strain imposed by oversize limbs.
你可以对你的小腿肌肉、大腿肌肉（前面和后面）、胸部、腹部、臀部、肩部和背部这么做。
You can do this with your calf muscles, thigh muscles (front and back), chest, abdomen, buttocks, shoulders and back.
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