There was a time when each teacher spent an hour, one day a week, testing students in every subject.

曾有一段时间，每个老师每周都花一小时来测验学生的各门功课。

《柯林斯英汉双解大词典》

Students studying for a particular degree will take a series of lecture courses which run in parallel at a fixed time in each week and may last one academic term or the whole year.

攻读特定学位的学生将在每周的固定时间同时参加一系列讲座课程，可能持续一个学期或一整年。

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She was intending to work part time, but could only manage one day a week in the office due to childcare.

她原本打算做兼职，但因为照顾孩子，她一周只能在办公室工作一天。

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Fewer than one hundred thousand American troops are in Iraq for the first time since the invasion seven years ago next week.

VOA: special.2010.03.13

Our subject this week is the teenage investigator in one of the most successful children's book series of all time Nancy Drew.

VOA: special.2009.08.24

The World Food Program said last week that the number of hungry people will pass one billion this year for the first time in history.

VOA: special.2009.09.22

Meanwhile, before the next review in 2011, annual meetings of experts will actually spend less time (one week, instead of two until now) discussing ways to improve lab safety and the security measures needed to govern dangerous pathogens, and on developing codes of conduct for those working in the biotech industry.

ECONOMIST: Bug-bombs and bacteria: Can the line against bio-terror hold? | The

By this time next week, one of his financial records figures to be broken, too.

FORBES: Naismith Paper Should Fetch Record Price

The rules also prevent Nasdaq from acquiring more than 14.99% in one week's time.

FORBES: Nasdaq Has A Trick Up Its Sleeve