Troops patrolled the border day and night.

军队日夜在边境地区巡逻。

《牛津词典》

In theory I'm on call day and night.

理论上，我不分昼夜随叫随到。

《柯林斯英汉双解大词典》

When a company goes down, the administrator must respond —and this could easily mean any time of day, night, or week.

当一个公司业绩下滑时，管理者必须做出反应——这可能意味着白天黑夜或者周末的任何时候都得上班。

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The outcome of the Saturday night drama had actually been sealed earlier in the day, when two Democratic senators who had not pledged their support for the bill announced that they would vote for it to advance to debate.

VOA: standard.2009.11.23

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

Day and night I begged my mother and father to take the bag away shaking with terror because no one saw them but me.

我无时无刻不乞求我的父母,指着那些袋子，让他们带走,我怕的发抖,由于除了我再也没人能看到。

耶鲁公开课 - 1945年后的美国小说课程节选

We should have the ability to stand out on your porch anytime, day or night, that you want to, to walk down the street, day or night.

BBC: Tulsa police launch manhunt after shootings kill three

It turns night into day and day into night.

FORBES: Dow Jones Interactive

With a food market and a number of night clubs located here, this area is humming from day to night.

CNN: Explore Malmo's must-see sights