不要使婴儿的颈部过伸.Do not hyperextend infant's neck.Levine - Edwards分类有待改进,应增加旋转和侧屈及过伸一分离损伤机制.Levine - Edwards classification will be expanded by the rotation and extension - distraction forces for the injury mechanism.目的:比...

“过伸”的英语可以翻译为：hyperextension ...