days是可数名词。n.一天;一日;白昼;白天;工作日;一天的活动时间
day的复数
例:No two days are the same.
一天一个样。
I've got three days' holiday including New Year's Day.
包括元旦在内我有三天假。
Connection to the gas supply was delayed for three days.
接通煤气延迟了三天。
We've come a long way since the early days of the project.
这项目开始以来我们已取得很大进展。
The road was closed to traffic for two days.
这条路已经封路两天了。
only two more days to go!
仅仅剩下两天了!