名詞 week:

1. any period of seven consecutive days
   同義詞：hebdomad
2. a period of seven consecutive days starting on Sunday
   同義詞：calendar week
3. hours or days of work in a calendar week
   同義詞：workweek

1. Sunday is the first day of the week.
   星期日是一周的第一天。
2. The temperature has stayed hot this week.
   本周氣溫一直都很熱。
3. He is very busy this week.
   這星期他會很忙。

week

n.Abbr. w.,wk.（名詞）縮寫 w.,wk.

A period of seven days:
一周：一段七天的時期：
例句：
a week of rain.
下雨的一周

A seven-day calendar period, especially one starting with Sunday and continuing through Saturday:
星期：一段七天的日歷期間，尤指把星期日當作起始日，連續(xù)下去直至星期六：
例句：
this week.
這個星期

A week designated by an event or a holiday occurring within it:
活動周：因某項活動或假日在其中舉行而得名的星期：
例句：
commencement week.
開業(yè)周

A week dedicated to a particular cause or institution:
活動周：用于某項事業(yè)或公共機構(gòu)的星期：
例句：
Home Safety Week.
家庭安全周

The part of a calendar week devoted to work, school, or business:
工作周：用于工作、上學或做業(yè)務(wù)的日歷周：
例句：
working a three-day week.
工作周工作三日

One week from a specified day:
從某一天開始起的一周后：
例句：
I`ll see you Friday week.
下周五見

One week ago from a specified day:
從某一天起的一周前的一天：
例句：
It was Friday week that we last met.
我們上次見面是一周前的周五

來源：
Middle English weke
中古英語 weke
from Old English wicu * see weik- 2
源自 古英語 wicu *參見 weik- 2