Interlace fingers behind head. Keep elbow straight out to side. Move shoulder blades toward each other. Hold for 5-10 seconds. Repeat 3-5 times.
手指交叉放在脑后。保持肘部正对前方。让两个肩胛骨彼此靠拢。保持5 - 10秒钟。重复3 - 5次。
So you want to take your shampoo, hold your arm straight up, keep your arm right next to your ear, and then simply bend your elbow to ninety degree, and then lift it back up.
你要拿起洗发水，手臂向上伸直，紧贴耳朵，然后只要将手肘向后弯曲90度，再将手肘伸直。
Keep your elbow straight and avoid leaning over.
保持你的肘关节伸直并且避免倾斜。
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