freeadj.自由的；免费的；畅通的；没有…的；未使用的；空闲的；随意的v.释放；使自由；使摆脱；解除；使可用于(某目的)adv.免费地；自由地freelore[计] 特殊的自由

1. Immediately behind the shoulders ribs are flattened enough to allow free movement of the forelegs, becoming rounder behind.
   肩胛后面的肋骨立即变平，允许前肢能自由运动，随后逐渐变圆。