Fractures of shoulder blade are rare.

肩胛骨骨折较少见.

And that's partly because each arm is anchored to the body by the shoulder blade or scapular.

部分原因是每一个手臂固定在身体的肩胛骨或者肩胛那儿。

I quickly tucked my face into his shoulder blade, under my own arm, and squeezed my eyes shut.

我飞快地把头贴住他的肩胛骨，埋在自己的胳膊下，然后紧紧地闭上了眼睛。

The upper arm joins the shoulder blade in an approximate right angle.

上臂以适当的直角与肩胛连接.