但直到二十世纪初，建筑声学才正式成为一个科学领域。
But it was not until the beginning of the twentieth century that architectural acoustics became a scientific field.
本世纪初，约有三分之一的作物工人年龄在35岁以上。
At the start of this century, about one-third of crop workers were over the age of 35.
自二十世纪初以来，已经有六十多所大学的成员获得过诺贝尔奖。
Since the beginning of the twentieth century, more than sixty university members have won Nobel prizes.
自二十世纪初以来，地球物理学家已经了解到地幔像浓汤一样搅动和翻滚。
Since the early twentieth century, geophysicists have understood that the mantle churns and roils like a thick soup.
马歇尔避免了二十世纪初抗议小说中典型的受压迫、与白人社会冲突的悲剧性女主人公。
Marshall avoided the oppressed and tragic heroine in conflict with White society that had been typical of the protest novels of the early twentieth century.
到二十世纪初，科学家们认为，在更新世期间，有四次不同的冰川作用对北美和欧洲产生了影响。
By the early part of the twentieth century, scientists believed that four distinct glaciations had affected North America and Europe during the Pleistocene epoch.
到二十世纪初，关于进化速度的问题已经得到了答案，答案支持渐进主义，大多数生物学家对此感到满意。
By the early twentieth century, the question about the rate of evolution had been answered in favor of gradualism to most biologists' satisfaction.
本世纪初，是什么推动了欧洲电动车销售的增长？
What brought about the boost in ebike sales in Europe at the beginning of the century?
本世纪初，这一地区的一些印第安人常常赤身睡在吊床里。
Some of the Indians of this region, earlier in the century, used to sleep naked in hammocks.
自本世纪初以来，公立学校将越来越多的课间休息时间用于学术活动上。
Since the beginning of this century, an increasing amount of time has been shifted in public schools from recess to academic activities.
直到本世纪初，身体内的交流和随之而来的行为的整合都被认为是神经系统的专有领域。
Communication within the body and the consequent integration of behavior were considered the exclusive province of the nervous system up to the beginning of the present century.
格伦·舍伦贝格在本世纪初的发现并没有得到在大约十年后所进行的一项更大的研究的支持。
Glenn Schellenberg's findings at the beginning of this century were not supported by a larger study carried out some ten years later.
然而，本世纪初的其他语言学家不那么热衷于处理来自“异国”语言的奇异数据，他们并不总是如此感激。
Other linguists in the earlier part of this century, however, who were less eager to deal with bizarre data from "exotic" language, were not always so grateful.
然而，本世纪初的其他语言学家不那么热衷于处理来自“异国”语言的奇异数据，他们并不总是如此感激。
Other linguists in the earlier part of this century, however, who were less eager to deal with bizarre data from "exotic" language, were not always so grateful.
黑人表演者伯特·威廉姆斯在本世纪初提出了一条著名的观点：“作为有色人种并不丢脸，但是极其不方便。”
"It's no disgrace to be colored," the black entertainer Bert Williams famously observed early in the century, "but it is awfully inconvenient."
二十世纪初，许多医院并不接纳黑人。
In the early 20th century, it was not a given that African-Americans would be admitted into many hospitals.
二十世纪初标志着一个时代的开始与终结。
The early twentieth century marked an era of beginnings and endings.
科学家预言世界上已探明的石油资源将在下个世纪初用尽。
Scientists predict that the world's known oil resources will run out early in the next century.
在二十世纪初以前，它曾是美国最高的人造建筑。
It was the tallest man-made structure in America from its completion until the early 1900's.
同时也因为选民们于本世纪初拒绝了自由市场纲领。
But it is also because voters rejected free-market programmes earlier this decade.
在本世纪初，白色代表着纯洁的寓意超过了其他寓意。
To the beginning of this century, the white represents the purity of the meaning is more than any other.
我们知道，自本世纪初以来，外部卫生援助量翻了一倍多。
We know that external assistance for health has more than doubled since the start of this century.
为什么大马士革钢在上世纪初还广泛使用而如今则少有人问津？
Why is damask steel that was so widely spread in the beginning of the last century is now a rare thing?
在本世纪初，科学家与工程师开始认真地研究利用太阳能的方式。
In the beginning of this century, scientists and engineers began researching ways to use solar energy in earnest.
上世纪初，第一位到莫干山山顶景区观赏的外国人是坐在轿子上被抬上去的。
The first foreign vacationers to visit the mountaintop resort area of Moganshan, at the turn of the last century, were carried up in sedan chairs.
在本世纪初消失已久的凤头燕鸥为人们再次发现，这真是可喜可贺。
The rediscovery earlier this decade of the Chinese crested tern, long thought extinct, was cause for celebration.
在本世纪初消失已久的凤头燕鸥为人们再次发现，这真是可喜可贺。
The rediscovery earlier this decade of the Chinese crested tern, long thought extinct, was cause for celebration.
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