Red light dissipates beyond about 30 feet (10 meters), so the reddish hue of this fish would appear black in deeper waters, allowing some degree of invisibility for this nocturnal hunter.

红光在10公尺以下的深处就会消散，所以这条鱼身上的红色调会在较深处呈现黑色，让这种夜行性猎食者在某种程度上能隐形。

youdao

I lay lazily smoking and studying the colour of the sky, as we call the void of space, from where it showed a reddish grey behind the pines to where it showed a glossy blue-black between the stars.

我懒懒的躺着吸烟，观察天空的颜色，在我们所说的太空空间里，在松树林后面的那一片是微红的灰色，星与星之间则是泛着光泽的深蓝。

youdao

Not very black. It's reddish in color. That's why we Chinese call it red tea. You look tired, Mr. Smith!

不是很黑，是微红色的。这是我们中国人称作红茶的原因。你看上去很累，史密斯先生。

youdao

There is someone else at that interrogation session: an observer, who wears a black hood and removes it to shake out a glorious curtain of reddish-gold hair.

NEWYORKER: Dead Reckoning