After this, the printer lays down cells one layer at a time, until the area is covered.

在此之后，打印机每次会打印下一，直到整个受伤区域完整覆盖。

This is because writing and printing involve intricate movements that activate more areas of the brain.

因为书写和打印涉及复杂的动作， 些动作能激活更多的大脑区域。