Abdominal law: Inspiratory when loosen abdominal muscle, expiratory when contractive abdominal muscle, such thresh 3 minutes.

  • 腹式呼吸法: 吸气时放松腹肌, 呼气时收缩腹肌, 如此反复做3分钟.

  • 互联网摘选 2025-01-18 11:44:22

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