day的复数是直接加s，即days。因为day是元音字母+y结尾，所以复数是直接+s。day作为可数名词，含义有“白天”、“一天”、“一日”、“白昼”、“工作日”、“一天的活动时间”。
day的中文意思及双语例句
day作为名词，是可数名词，意为白天;一天;一日;白昼;工作日;一天的活动时间。例句有：
1、I saw Tom three days ago.
我三天前见过汤姆。
2、We can't go there today. You can go another day .
我们今天不能去那儿。你可以改天去。
3、I could sit and watch the river all day long .
我可以整天坐在这里看那条河。
4、She didn't do a full day's work .
她并没干一整天的工作。
5、Most women stayed at home in those days .
在那个时代，大多数妇女都待在家里。
6、The weather did not help; hot by day, cold at night...
天气也不肯帮忙：白天很热，晚上很冷。
7、He began to talk about the Ukraine of his uncle's day...
他开始讲述他叔叔那个时代的乌克兰。
8、The newspaper job had me doing the same thing day after day.
这份报社的工作让我日复一日地做着同样的事。
9、Thousands of working days were lost through strikes last year.
去年因罢工损失了数以千计的工作日。
10、Cheques usually take three working days to clear.
兑现支票通常需要三个工作日。
11、Your working day will need to be organized with military precision.
需要对你的工作日进行精确有序的安排。
12、A policeman could meet danger any minute of his working day.
警察在工作日的任何时刻都可能有危险。
