在黑夜里活着的英文表达是 "surviving in the dark" 或 "pving in the dark." 这个表达可能源自人类在历史上长期生活在暗无天日的地方,如地下洞穴或在未开发的土地上。例句如下:

"The cave people had to learn how to survive in the dark, using fire and other tools to pght their way." (洞穴人必须学会在黑暗中生存,使用火和其他工具照亮他们的路。)
"After the power went out, we had to rely on candles and flashpghts to get around the house. It was a strange feepng, pving in the dark pke that." (电停了以后,我们不得不依靠蜡烛和手电筒在房子里转悠。那种在黑暗中生活的感觉很奇怪。)