While the adults go out at night for food, the young bats hang out in the cave for four or five weeks.

VOA: special.2009.12.07

And five weeks less one day later I decided you know what this might actually be for me and I switched from pass-fail to letter graded status at that point in time.

而第五周的最后一天,我从上及格-不及格制的课程转为上数字学分制的课程,你们可能知道这对我来说意味着什么。

哈佛公开课 - 计算机科学课程节选

One sign is that the Standard & Poor's list of five hundred stocks has risen more than twenty-five percent in the past five weeks.

VOA: special.2009.04.17

For the past five weeks,British forces have been clearing the territory between Lashkar Gah and Girishk in Afghanistan's Helmand Province.

VOA: standard.2009.07.27

"So we have two courses for five weeks,16 members.

VOA: standard.2010.02.25

Analyst Ali Nourizadeh, of the London-based Center for Arab and Iranian Studies, says the Iranian government is doing its best to prevent students from protesting, but he thinks student determination to go ahead with Monday's rallies is stronger: "The regime has already started four,five weeks ago arresting students.

VOA: standard.2009.12.07

Negotiations among the five permanent Security Council member states on a new sanctions resolution have been underway in New York for several weeks.

VOA: standard.2010.05.14

Details of the discussion were not released. The president's press secretary, Robert Gibbs, says this is the second of five such meetings to be held over several weeks, to determine the best course in Afghanistan.

VOA: standard.2009.10.01