每面内的颜色都相同，这是因为光线是平行的。

Within a side, the color stays the same because of the light's parallel rays.

youdao

这是因为他们的颜色像树一样。

This is because they have the colours much like the trees.

youdao

这是因为他们有和树林一样的颜色。

This is because they have the colors much like the trees.

youdao

这是因为他们有和树林一样的颜色。

This is because they have the colors much like the trees.

youdao