“Real” colors are basically colors that can be produced by a physical light source.

“真实”颜色基本上是可以由物理光源产生的颜色。

In the case of nociplastic pain, a sensation that cannot easily be traced to any physical source, such empathy can be hard to find.

对于伤害性疼痛（一种无法轻易追踪到任何身体来源的感觉）来说，这种同理心可能很难找到。