The machines are kept running night and day.

这些机器夜以继日地运转着。

《牛津词典》

They are to be admired and pitied, as one would pity and admire a being at once night and day, without eyes beneath his lashes but with a star on his brow.

我们应当赞美并怜悯他们，正如我们同时日夜怜悯又赞美一个人，在他的睫毛下面没有眼睛，只有一颗星星在额上。

youdao

For night and day belong to love.

无论白天黑夜，爱长伴你左右。

youdao

Here she adds a Latin beat to the song "Night and Day."

VOA: special.2010.05.14

Good things of Day begin to droope, and drowse, While Night's black Agents to their Prey's do rowse.

光明渐渐沉寂，消失，黑暗却更加振奋。

耶鲁公开课 - 文学理论导论课程节选

It's a free music and art festival, it will be 11 am to 7 pm, all day and night.

这是一个免费的音乐艺术节，上午11点到晚上7点，一整天。

请记住我 - SpeakingMax英语口语达人

"It's like night and day, " said Lucinda Roy, a creative-writing professor who taught Mr. Cho.

WSJ: Two Killed in Virginia Tech Shooting

"I think it's definitely a dangerous night and day, " said CNN Meteorologist Ivan Cabrera.

CNN: Severe thunderstorms sweep the Mississippi Valley

Tearing up from Antarctica, the trade winds of the Benguela system batter the shoreline night and day.

BBC: The ghostly shore of Namibia��s Skeleton Coast