It's still unclear what exactly gives the spot its red color.

目前还不清楚是什么让这个斑点呈现出红色。

Farley said unusual color spots and other structural elements in the samples suggest " chemical reactions" that might have given energy to ancient microbial life.

法利说，样本中不寻常的色斑和其他结构元素表明，" 化学反应 " 可能为远古微生物生命提供了能量。

As wholes, or parts, with movement or just motionless figures, with special attention to the color spots or ignoring them, with lots of ideas or just a few stereotyped responses.

图形有完整的，有局部的，有动作或静止的，看你是否会特别注意彩色墨点，或加以忽视，会提出特别的观点，或只是些普通的答复。