你知道牙膏廣告中的Day and night是什麼意思嗎？英文裡有很多關於day、night的成語，一起和Engvid.com的講師Rebecca來學習１０個與day、night相關的成語吧！
1. day by day 日復一日
He’s getting stronger day by day.
2.made my day 令我高興
Thanks! You really made my day.
3. call it a day工作到一段落
Okay, Let’s call it a day.
4.One of these day/one day/some day 有朝一日
One of these day, I’ll be rich.
5. night owl 夜貓族
又可稱做night people，與習慣早起的day people相反， night owl習慣在晚上活動，他們function better in the night.
John’s a night owl.
6. all night long一整晚
The baby was crying all night long.
7. fly by night不負責任的，騙人的
多用來批評公司不誠實，here today gone tomorrow
They are a fly by night operation.
8. a night on the town晚上出們狂歡
We enjoyed a night on the town.
9. day and night 日日夜夜、一天到晚
She looks after her mother day and night.
10. as different as night and day 天差地別
My sister and I are as different as night and day.