Some are special party boats. These go out for the day or during the night.

VOA: special.2010.03.22

I'm going to post PowerPoints for all the lectures, hopefully at least the day before the lecture takes place, so I posted this last night.

我会把课程所有的幻灯片挂到网上,希望至少在上课的前一天完成这件事,因此我昨天晚上把今天的幻灯放上来

耶鲁公开课 - 生物医学工程探索课程节选

For three months after Simon's death, I worked day and night on my diamond lens.

VOA: special.2009.07.25

"North Korea fed its version of the story to the people, saying the reason Kim looks this way is not because he's lost his health, but because he works day and night for the people, visiting work sites and so on,"

VOA: standard.2009.12.30