1.day的基本意思是“一天”,指二十四小时长的一段时间,是可数名词。也可指“日间,白天”,既可用作可数名词,又可用作不可数名词,通常不加冠词。
2.day也可表示“工作日”,指一天二十四小时之内的工作时间,是可数名词。
He must be 70 if he's a day!
他至少70岁了!
It's been quite a day, one way and another.
从几方面看,这是不寻常的一天。
She didn't do a full day's work.
她并没干一整天的工作。
How many days did you take off?
你休了几天假?
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。