In the beginning the practitioner may feel little pain in the abdomen and back because of new strain to the body, which disappears after some days.
开始时，练习者可能会感到腹部和背部微痛，这是由于身体的受伸拉的原因，几天后便会自行消失。
In the beginning the practitioner may feel little pain in the abdomen and back because of new strain to the body, which disappears after some days.
开始时，练习者可能会感到腹部和背部微痛，这是由于身体的受伸拉的原因，几天后便会自行消失。
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