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！
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