But if a major volcanic eruption has polluted the stratosphere with thin haze, the eclipse will be dark red, ashen gray, or blood-black.

但如果发生大型火山喷发，导致同温层掺杂有薄云，那么月食就会变成暗红色、灰暗色或者血黑色。

youdao

He was middle-age, with a haggard face and a dark red birthmark or scar on his right temple and his black hair was carefully parted and combed in strands.

他是个中年人，面容憔悴，右边太阳穴上有个深红的胎记或伤疤，他那黑色的头发成绺细心地梳理成分头。 他凝神望着道路。

youdao

I'm usually dark brown, but I also can be black, gray or shades of red.

我通常是深棕色的，但也可能是黑色、灰色或暗红色。

youdao

He was wearing a black baseball cap, and a black or dark coloured leather jacket with red piping.

BBC: Man sought over Dorset swan crossbow attack