Surrounding the grey matter is white matter, which consists of the myelinated axons of various neurons.

灰周围的，由有髓的神经元轴突构成。

The white matter consists of myelinated axons, which are separated into tracts that carry information to and from the brain.

由有髓的轴突组成，它们被分成若干神经束，负责向大脑传递以及从大脑向其他部位传递信息。

The young brain is largely not myelinated. Myelin is the coating of nerve fibers that connect nerve cells.

年轻的大脑基本上没有髓。髓连接神经细胞的神经纤维的涂。

Frequently used neuronal pathways are myelinated, wrapped in a layer of insulation, allowing information to travel faster.

经常使用的神经通路有髓的，裹在一绝缘中，使信息能够更快地传播。

White matter refers to connections that are myelinated, coated in a layer of insulation, allowing for fast far-range communication between information hubs.

指的有髓的神经纤维，由一保裹，保证了信息中心之间的远距离快速交流。

And although a big fissure separates the left and right hemispheres, the two halves communicate, through a series of myelinated axon fibers called the corpus callosum.

虽然左右半球之间有一条大裂缝，但这两半通过一系列有髓的轴突纤维——也就所谓的胫骨体——进行交流。

Arrows shot from recurve bows fly, on average, around 240 kilometers per hour, which means that given a sufficiently long, myelinated, or large-diameter neuron, your thoughts actually could win the race.

由反曲弓射出的箭平均飞行速度大约每小时 240 公里。这就意味着，只要神经元足够长，且被髓化或有较长直径的话，你的思维实际上可以赢得比赛。