英语语法分析

Its elongated skull with toothless tips and short cervical vertebrae indicate that it is similar to that of Pteranodon.

它窄长的头骨、没有牙齿的尖颌和短短的颈椎表明，它与无齿翼龙类似。

Aside from minor differences in the shape of the neck vertebrae, early birds and their Maniraptoran kin, look very much alike.

撇开颈椎形状的微小差别不谈，早期鸟类和它们手盗龙家族的近亲看起来非常相似。

This is worrying, as long-time use of smart phones harms children's eyesight, cervical vertebrae and even the brain.

这令人担忧，因为长期使用智能手机会损害儿童的视力、颈椎甚至大脑。