不也有建议说吐痰其实可以帮助清理呼吸道，保持那些通向肺部的重要通道畅通么？
Does spitting, as some suggest, help clear the airways and keep those crucial passages to the lungs free?
倒置体式能清理上呼吸道，排出鼻腔内的分泌物，让新鲜富氧的血液循环到口腔。
Inversions can help clear the upper respiratory tract and drain secretions from the nose, allowing freshly oxygenated blood to flow into the oral cavity.
4 - 6分之间的婴儿常常需要进行呼吸复苏，一般为其清理呼吸道和供氧。
Those who score between 4 and 6 often need resuscitation, which generally includes suctioning their airways and administering oxygen.
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