period简单

illustrate the high status of blacksmiths in that period.

说明那个时期铁匠的地位很高。

(46) It was also, and this is unknown even to many people well read about the period, a battle between those who made codes and those who broke them.

（46）这也是一场编码者与破译者之间的战斗，甚至许多熟读这段历史的人都不知道这一点。

What made photography develop slowly in the Victorian period?

是什么使摄影在维多利亚时代发展缓慢？

(50) High growth rates increased the chances for academic innovation; they also weakened the forms and processes by which teachers and students are admitted into a community of scholars during periods of stability or slow growth.

(50) 高增长率增加了学术创新的机会；但也削弱了在稳定或缓慢增长时期教师和学生得以进入学者共同体的形式和过程。

We know we are moving into a period where the jobs in demand will change rapidly, as will the requirements of the jobs that remain.

我们知道，我们正步入一个时期，所需的工作岗位将迅速变化，留存下来的岗位的要求也会如此。

(46) With the Church’s teachings and ways of thinking being eclipsed by the Renaissance, the gap between the Medieval and modern periods had been bridged, leading to new and unexplored intellectual territories.

(46) 随着教会的教义和思维方式被文艺复兴所掩盖，中世纪和现代之间的鸿沟得以弥合，从而开辟了新的、未经探索的知识领域。

These fires were carefully planned and intentionally ignited during periods when weather kept the blazes easy to control, and helped eliminate some of the fuel that had built up around the important park’s facilities.

这些火是经过精心规划的，并在天气条件使火势易于控制的时期有意点燃，它们帮助清除了这座重要公园的设施周围积聚的部分可燃物。

Other life changes can [trigger] periods of loneliness too, such as retirement, changing jobs or becoming a parent.

其他生活变化也可能{{8}}一段时间的孤独，比如退休、换工作或为人父母。

“No college will expect that a student has a huge laundry list of extracurriculars that they have been passionately involved in each for an extended period of time,” Rexford wrote in an email.

雷克斯福德在一封电子邮件中写道：“没有哪所大学会期望一个学生拥有一长串课外活动，而且每一项都长期热情投入。”

It [peaks] in young adulthood, levels out for a period of time, and then [generally] starts to slowly decline as we age.

它在青年时期{{1}}，在一段时间内保持平稳，然后随着我们年龄增长{{2}}开始缓慢下降。

The researchers looked at data that [included] measurements of lean muscle and abdominal fat from more than 4,000 middle-to-older-aged men and women and [compared] that data to reported changes in fluid intelligence over a six-year period.

研究人员查看了{{7}}4000多名中老年男女的瘦肌肉和腹部脂肪测量值的数据，并将这些数据{{8}}六年间所报告的流体智力变化。

There was first the rate of growth: (48) in many countries of Western Europe, the numbers of students in higher education doubled within five-year periods during the 1960s and doubled again in seven, eight, or 10 years by the middle of the 1970s.

首先是增长速度：(48) 在许多西欧国家，20世纪60年代高等教育的学生人数在五年内翻了一番，到70年代中期又在七年、八年或十年内再次翻番。