(1)星期，周(period of seven days from Sunday to Saturday)[C]：last/next/this～上/下/本周;the～before last 上上星期; a～from today/tomorrow 从今天/明天算起的一周;early/late next～下周初/末; every other～每隔一周;some time (during) next～下周内某一时间; once/twice a～一星期一/两次; at the end of last～在上周末; What day of the～is it/was 13 last month? 今天/上月13日是星期几? Sunday is the first day of the～. 星期日是一周的第一天。Saturday is the last day of the～. 星期六是一周的最后一天。today/tomorrow～一周后的今天/明天;Monday～下星期一;～after～一连数周; a～last Monday/yesterday 一个星期前的那个星期一/昨天;

(2)七天的时间(period of about seven days)[C]：a two～s' holiday 两周的假期; a～ago today/yesterday 一星期前的今天/昨天; per～每周;～s ago 几个星期前; They are going away for two～s/no more than a～. 他们要出门两周/不超过一个星期。Nothing has happened in the past～or two. 在过去的一两周内没发生什么事。It's been～s since I last saw her. 从我上次见到她已有好几个星期了。

(3)(除周日外的)六天(six days excluding Sunday)[C]：He spends the～in London and goes to his house in the country on Sundays. 他平时在伦敦，周日去乡下的住宅。During the～， the traffic is heavy on the road but it is not busy on Sundays. 从星期一到星期六，这条路的交通十分繁忙，但星期日没有什么车辆。

(4)(除周六和周日外)五天(five days exclud-ing Saturday and Sunday)[C]：live/stay in London during the～and go to the country at the weekend 从周一到周五住在伦敦，周末到乡下去;During the～I got up at seven. 从周一到周五我每天7点起床。I have a lot to do all the～. 从周一到周五我有许多事要做。

(5)一周的工作时间 (working days in a week)[C]： work a 40-hour～每 周工作40小时;go on strike for a shorter working～罢工要求减少每周的工作时间;How many lessons do you have in the school～? 你们在学校里每周有多少节课? The 5-day～is usual in most firms. 大多数公司通常每周工作五天。We pay the wages by the～. 我们按周付薪水。

(6)一周的庆祝活动(celebrating activity of seven days)[C]：National Film W～全国电影周;National Book W～全国书展周;Fire Prevention W～防火周;

week in，week out 一周又一周： look forward to hearing from one's daughter～in，～out 一周又一周地盼着女儿的来信;

→′weekday n(除周日、六以外的)任何一天;͵week′end，AmE ′weekend n 星期六和星期日;adj 周末的;v 度周末;͵week′ends adv 每周末地;͵week′ender n 度周末的人;′weeknight n(除周日、六外的)每天晚上