对于牙齿和牙龈的安全，不妨碍呼吸。无毒。
Is safe for teeth and gums, does not impede breathing. Non-toxic.
当孩子躺在床上时，家长要动物轻缓地解开孩子的衣服，免得妨碍呼吸。
When the child lying in bed, the parents solve their children to animals, clothes softly, lest hinder breathing.
把婴儿放在新床上或变换睡眠姿势时必须小心陌生环境会使婴儿扭来扭去，从而增加被褥妨碍呼吸的危险。
Also, be careful when putting an infant in a new bed or a new sleeping position: a strange situation can cause him to squirm around, which raises the risk of being smothered in bedding.
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