调整身体重心和骨盆的角度，找到一个让骶髂关节最舒适的位置。
Shift your body weight and adjust the angle of your pelvis to find the position that feels best in your sacroiliac area.
以一个服务人员的角度来说，他们需要的是为顾客提供最舒适的环境和最理想的服务态度。
As a service personnel's point of view, what they need is to provide customers with the most comfortable environment and best service attitude.
以一个服务人员的角度来说，他们需要的是为顾客提供最舒适的环境和最理想的服务态度。
As a service personnel's point of view, what they need is to provide customers with the most comfortable environment and best service attitude.
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