Work time has been reduced in the past 200 years from about 12 hours a day to less then 8 hours per day and the working week from 7 days to 5.

在过去200年里，工作时间已经从每天大约12小时减少到每天低于8小时以及每周工作7天减为5天。

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Methods: Venous blood was collected on an empty stomach from patients in the test and control groups and then 8 indexes were detected.

方法：对急性缺血性脑梗死组及对照组空腹采静脉血检测血液流变学8项指标。

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And then we have c, the speed of light, 2.998 times 10 to the 8 meters per second.

然后我们知道光速等于，2，998乘以10的8次方米每秒。

麻省理工公开课 - 化学原理课程节选

I first had a list of size 8, then 4, then 2, but then I had another problem of size 2.

首先是一个有8个元素的序列，接着变成了4个元素，接着2个元素，然后我就碰到了有2个元素的另一个问题。

哈佛公开课 - 计算机科学课程节选

Chapters 8 through 10 recount the installation of Aaron as high priest and the Aaronides then as the priestly clan within Israel.

到10章节讲述了亚伦是怎么成为大祭司的,以及亚伦的后代是怎么成为以色列的祭司宗族的。

耶鲁公开课 - 旧约导论课程节选

Originally inspired by Cronin's then 8-year-old daughter, at its heart it's a story about a little girl who saves the world.

CNN: Apocalypse wow in 'The Twelve'

Then 4, then 8, then 16, then 32--and the rest is history.

FORBES: The Enemy Beneath

There is first support now at 8, 800 to 8, 900, and then at 8, 650 to 8, 700.

FORBES: Will Hedge Funds Be Wrong Again?