The true shape of Earth is called an oblate spheroid.

地球真正的形状被认为是扁球形。

The perception is weird because we usually think of the world in terms of a map and not in terms of its true spherical shape.

这种视角很奇怪，因为我们通常从平面视图的角度来看世界，而不是从其真正的球形形状来看。

Unfortunately, the fossils were crushed under tons of volcanic ash, making it difficult sometimes to interpret the true shape of the bones.

不幸的是，这些化石被大量的火山灰压碎，有时很难解释骨头的真实形状。