外面没有光用英语

暗淡无光[àn dàn wú guāng]

[词典] dim and dark; be gloomy; fall into the shade; in dim and dreary colours

[例句]

There are more dim bulbs in the universe than even the most hardened pessimist might have imagined.

在宇宙里，即使是最坚定的悲观主义者也想像不出还有那么多暗淡无光的球状物。

It was a night pitch dark without even a ray of light.

indeed/dark/without/light

you are my sun if there is no shine.