1·Candles burned day and night.
蜡烛日夜燃烧。
2·Day and night, we could hear the happy circus music.
日夜，我们可以听到快乐的马戏团音乐。
3·Causing you cry day and night as the pain was so severe.
剧烈的疼痛使你日夜哭叫。
4·A bowl of longevity noodles, sweet somersault noodles is my long wish, will you around forever, may joy and health, happiness, sweet accompany with you day and night, I wish a happy birthday!
一碗甜甜的长寿面，筋斗的面条是我长长的祝愿，一丝丝将你缠绕到永远，愿健康快乐、幸福甜蜜与你日夜相伴，祝生日快乐！
5·Xinjiang fruits delicious because it day and night temperature difference big, so all the fruit is sweet.
新疆的水果好吃的原因，是因为日夜温差很大，所以所有的水果都很甜。
1·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》
2·The enemy kept up the bombardment day and night.
敌人昼夜不停地狂轰滥炸。
—— 《牛津词典》
3·She thinks she can call me at all hours of the day and night.
她以为她可以不分昼夜随时给我打电话。
—— 《牛津词典》
4·The dark powers cling about us, it is said, day and night, like bats upon an old tree; and that we do not hear more of them is merely because the darker kinds of magic have been but little practised.
据说，黑暗之力不分昼夜地缠在我们身边，就像老树上的蝙蝠一样；我们之所以对它们缺乏了解，只是因为这些更加黑暗的魔法很少得到施展。
5·The first manned day and night flight of a solar-powered aircraft has been postponed due to technical problems.
由于技术问题，第一架可实现载人昼夜飞行的太阳能飞机推迟首航。