Judging from the body posture, squatting posture is low, and upper body is high.

从身体姿势看，蹲屈姿势低，上体姿势高。

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Stretch when the low back pain: for the poor sitting posture.

伸懒腰时腰痛：多为坐姿不良。

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Stretch when the low back pain: for the poor sitting posture.

伸懒腰时腰痛：多为坐姿不良。

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