然而，日复一日，夜复一夜，传来的消息越来越糟。

But day after day, and night after night, the news continues to worsen.

youdao

大部分时间我们待在洞穴里，在黑暗里，日复一日，夜复一夜。

Most days we spend in our cave in the dark. Night after night, dayafter day.

youdao

他们日复一日、夜复一夜地重复着这样的生活；

They did this day after day and night after night;

youdao