上周用英文怎么说三种

"上周" 可以用三种英语表达：

"last week"
来源：last 是形容词，表示 "最后的" 或 "最近的"，week 是名词，表示 "星期"。last week 就是 "上周" 的意思。
例句：I had a great time last week. (我上周过得很好)

"the previous week"
来源：previous 是形容词，表示 "先前的" 或 "以前的"，week 是名词，表示 "星期"。the previous week 就是 "上周" 的意思。
例句：I didn't have much time to relax the previous week. (我上周没有多少时间放松)

"the week before"
来源：before 是介词，表示 "在...之前"，week 是名词，表示 "星期"。 the week before 就是 "上周" 的意思。
例句：I was very busy the week before. (我上周很忙)