這天常爸回家，「逮」到小小常正在認真做作業，於是忍不住誇讚道：
You are working so hard, Victor! Have you finished your homework?（你好用功啊，小小常！寫完作業了嗎？）
Not yet, I still have 5 more pages left!（沒呢，我還有5頁沒寫！）
Wow, that seems like a lot. Let's just call it a day.（哇，還有那麼多呢。那我們就call it a day吧。）
Call the homework a day? What day? I don't understand!（把作業叫做一天？哪一天啊？我不明白誒！）
"Call it a day" means to stop working on it for now. Maybe you should have a rest. （Call it a day意思是暫時停止工作。也許你應該休息一下。）
Yes, I don't think I can finish it all today anyway. I am calling it a day!（沒錯，我覺得今天肯定是完不成了。我今天就到此為止！）
Let's go and have some fruit.（我們去吃點水果吧。）
call it a day的字面意思就是「把它叫作一天」，實際意思是「下班，收工，停止手上的工作」等。例如：
✍學生面對繁重的課業時：
I worked on my term paper until about ten o'clock last night,
昨晚我寫期末報告一直寫到十點鐘，
but I got so sleepy, so I decided to call it a day.
後來我困不行就決定不寫了。
I'll finish it this afternoon when I come back from class.
今天下午上完課，我再把它寫完。
✍媒體從業者面對高強度的工作時：
We've got so much news to handle today
今天我們要處理的新聞太多了，
that I didn't even have time to have lunch.
忙得我連吃午飯的時間都沒有。
Now I am going to call it a day and go home to have a good rest.
今天就先這樣吧，我得回家好好休息去了。
除此之外，call it a day還可以表示「就此結束」，例如：
✍情侶分開：
Neither of us was happy in the relationship, so we decided to call it a day.
我們倆對這段關係都不滿意，所以我們決定分手。
✍樂隊解散：
After playing together for twenty years, the band members have finally decided to call it a day.
在一起演湊了二十年之後，樂隊成員終於決定解散了。
✍選擇退休：
After providing services for more than 30 years to NASA, Bill Scot decided to call it a day.
在為美國國家航空和宇宙航行局服務了30多年後，比爾·斯科特決定退休。
那麼，既然有「call it a day」，那有沒有「call it a night」呢?有的！
如果晚上下班，就可以說「call it a night」，比如：
☞領導面對辛苦加班的員工時：
Alright guys, you've worked really hard. I think it's time to call it a night. I'll see you all again tomorrow.
夥計們，大家辛苦了。今天的工作到此為止。明天見。
「call it a night」 也可以指去睡覺、去休息。
Wow! I can't believe it's 11pm already. Let's call it a night.
哇，原來已經11點了，我們去休息吧。
不知不覺我們今天就學習了這麼多新知識，不如「call it a day」吧！