例如，亚里斯多德在公元前三世纪曾有一个研究型图书馆。
For example, Aristotle once had a research library in the third century B.C..
在20世纪80年代中期前，金属午餐盒可谓是大热，后来塑料午餐盒开始风靡。
The metal lunch box craze lasted until the mid-1980s,when plastic took over.
东部和南部的大部分，现在比一个世纪前获得更多雨水。
Much of the east and south, now get more rain than a century ago.
按照几世纪前的规范，他已经轻易地逃过处罚。
现在的我们比一个世纪前旧金山被夷平的时候更了解地震。
We understand earthquakes better than we did a century ago, when San Francisco was flattened.
万圣节是一个奇异的节日，它起源于几个世纪前的欧洲。
Halloween is a strange holiday. It started several centuries ago in Europe.
例如，国际象棋最早起源与六世纪前的印度。
Chess, for example, began in India before the sixth century.
英格兰几个世纪前就已经拥有了中央共同法体系。
England has had a central system of common law for centuries.
现代男人与几世纪前相比变化不大。
这个旗杆从一个世纪前饭店开业起就一直固定在那里。
The flagpole has been a fixture since the building was first opened a century ago.
一个世纪前，从人的面部可以看出其性格的观点或多或少地被人们接受。
A century ago, the idea that a person's character could be seen in his face was more or less taken as given.
但这部法律的初稿在半个世纪前就诞生了。
历史数据表明早在一个世纪前外国工人就大量涌向美国。
Historical data show foreign workers flooding to America a century ago.
这在半个世纪前本无法实现。
蓝莓是一世纪前才被驯化的。
Because the blueberry wasn't domesticated until just about a century ago.
一个世纪前，参议院有很多的批评家。
和4个世纪前相比，天文学家们现在有更敏锐的“眼睛”来供他们使用。
Astronomers have much sharper eyes at their disposal now than they did four centuries ago.
现在的60岁就相当于一个世纪前的40岁。
Today’s 60-year-olds are like the 40-year-olds of a century ago.
Agnodike(公元前四世纪)。
20世纪末前，大部分人倾向于认为，这一百年是属于美国的世纪。
BY ITS end, most people would agree, the 20th century was an American century.
严格来讲，这一结论只适用于上个世纪前五十年。
Strictly, this result applies only to the first half of the last century.
本世纪的前十年，增长率就更低了。
In the first decade of this century, growth has been even slower.
长城最早始建于公元前五世纪。
并于公元前三世纪成型。
那是在公元前十八世纪。
例如大卫就是一个历史人物，他的确生活在公元前10世纪。
David, for example, is a historical figure. He did live in the tenth century B.C..
人类最早居住时间：大约是公元前8世纪到公元10世纪。
Inhabited: Approximately eighth century B.C.to 10th century A.D..
在上世纪六十年代前美国高等寄宿学校里学会这种口音。
Pick it up at a top boarding school in America before the 1960s.
在上世纪六十年代前美国高等寄宿学校里学会这种口音。
Pick it up at a top boarding school in America before the 1960s.
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