英语语法分析

There is sparing of gray matter and subcortical U-fibers.

灰质和皮质下u形纤维尚正常。

And these are called subcortical structures because they're below the cortex.

这些结构被叫做皮层下结构，因为它们在大脑皮层的下面。

The basal ganglia, the subcortical structure, participates the process of characters writing.

基底神经节作为皮层下结构，参与了文字书写过程。