week

n.
星期，周；一个星期的时间，一周；一周工作时间，工作周；（除去星期六和星期日的）星期，周；活动周（举行某项活动的一周）；（从某天算起的）一周；（某天之前的）一周；一周又一周，接连好几个星期

Phrase

1 Golden Week
黄金周 ; 黄金周间 ; 三一口语五级话题 ; 关于黄金周的英语作文

2 Holy Week
受难周 ; 大主日

3 last week
上周 ; 上周末 ; 上星期 ; 于上周

Bilingual example sentences

1 We commence building next week.
我们下周破土动工。

2 The program aired last week.
该节目已于上周播出。

3 The sale starts next week.
特价促销从下星期开始。

Dictionary phrases

1 last week
上周，上星期

2 next week
下周，下星期

3 every week
每周

Wikipedia

Week

A week is a time unit equal to seven days. It is the standard time period used for cycles of work days and rest days in most parts of the world.The term "week" is sometimes expanded to refer to other time units comprising a few days. Such "weeks" of between four and ten days have been used historically in various places. Intervals longer than 10 days are not usually termed "weeks" as they are closer in length to the fortnight or the month than to the seven-day week.