被陌生人从后面抱走孩子时，小孩子应把身体重心前倾，利用后脑勺猛撞陌生人

被陌生人从后面抱走孩子时，小孩子应把身体重心前倾，利用后脑勺猛撞陌生人脸上最脆弱的部位：鼻子，此动作冲击力非常大，陌生人会因为太痛而放手

Results (English) 1:

When a child is taken away from the back of a stranger, a child should be the body center of gravity forward, using the back of his head smashed into a stranger's face the most vulnerable parts: the nose, this action impact is very large, and strangers will be too painful to let go

Results (English) 2:

When a child is picked up from behind by a stranger, the child should tilt the center of gravity forward and use the back of the back to slam the most vulnerable part of the stranger's face: the nose, the impact of this action is so great that strangers will let go because they are too painful

Results (English) 3:

When the child is carried away from the back by a stranger, the child should lean forward and use the back of the head spoon to hit the most vulnerable part of the stranger's face: nose. This action has a great impact. The stranger will let go because of the pain