在17世纪中叶的伦敦，科学家们普遍不信任烟花。
In London in the middle of the 17th century there was general distrust of fireworks among scientists.
到19世纪中叶，欧洲的大部分地区处于人口转变的第一阶段。
By the mid-19th century most of Europe was in the first stage of the demographic transition.
19世纪中叶，进化论者查尔斯·达尔文首次对食肉植物感到惊奇。
Evolutionist Charles Darwin first marvelled at flesh — eating plants in the mid-19th century.
贝拉·巴托克是匈牙利人，他的一生从19世纪末延续到20世纪中叶。
Béla Bartók was a Hungarian, whose life stretched from the late nineteenth century to the middle of twentieth century.
由于题材过于个人化，二十世纪中叶几位著名诗人的作品被称为“自白”诗。
Because the subject matter was so personal, the work of several prominent mid-twentieth century poets has been termed "confessional" poetry.
在20世纪50年代中叶，我是一个有点无趣的学生，当时认为做任何不必要的事都是浪费精力。
In the mid-1950s, I was a somewhat bored student who believed that doing any more than necessary was wasting effort.
在这个世纪中叶，一位安特卫普的金融家略微夸张地说道：“没有汇票就不能交易，正如没有水就不能航行一样。”
At mid-century, an Antwerp financier only slightly exaggerated when he claimed, "One can no more trade without bills of an exchange than sail without water."
19世纪中叶，美国政府采取了一项将印第安儿童美国化的政策，即将印第安儿童赶出他们的家园并且将他们与其文化隔绝。
In the mid-19th century, the US government adopted a policy of Americanising Indian children by removing them from their homes and culture.
大众陶瓷业在19世纪中叶得到了发展。
The popular ceramics industry expanded toward the middle of the 19th century.
19世纪中叶标志着俄国历史的转折点。
The middle decades of the 19th century marked a watershed in Russia's history.
在19世纪中叶，多罗西娅·迪克斯发起了为精神病患者争取人道待遇的运动。
In the mid-nineteenth century, Dorothea Dix began to campaign for humane treatment of the mentally ill.
今年的报告指出，中国特色社会主义进入了新时代，并提出分为两个阶段的发展规划，到21世纪中叶把中国建设成为“社会主义现代化强国”。
This year's report said socialism with Chinese characteristics had entered a new era, and it drew up a two-stage development plan to build China into a "great modern socialist country" by mid-21st century.
到本世纪中叶，冰河时代的破坏力将难以想象。
An ice age by mid-century would be unimaginably devastating.
到了20世纪中叶，“边疆假设”在历史学家中渐渐失宠。
By the middle of the twentieth century, the Frontier Thesis fell into disfavor among historians.
在19世纪中叶，摄影术的发明极大地改变了人们对可见世界的感知。
Perceptions of the visible world were greatly altered by the invention of photography in the middle of the nineteenth century.
到了16世纪中叶，金融家和商人普遍接受汇票来代替黄金或白银进行商品交换。
By the middle of the sixteenth century, financiers and traders commonly accepted bills of exchange in place of gold or silver for other goods.
在19世纪中叶，由于工业化的发展，德国和其他欧洲国家经历了前所未有的大量因工死亡和因工事故。
During the middle of the 19th century, Germany, along with other European nations, experienced an unprecedented rash of workplace deaths and accidents as a result of growing industrialization.
到19世纪中叶，绅士的服装已越来越宽松。
Around the middle of the 19th century gentlemen's clothes began to relax.
石油的现代史开始于18世纪中叶。
The modern history of oil started in the middle of the eighteen hundreds.
然而，到了16世纪中叶，英国的糖变得丰盛了。
By the mid sixteenth century, though, sugar was becoming plentiful in England.
预计本世纪中叶竣工的工程包含三条浩瀚的人工运河。
Due for completion in the middle of the century, it involves the construction of three vast channels.
到了20世纪中叶，德国的地位一落千丈。
By the middle of the century, Germany's position had collapsed.
它是由“恐怖的沙皇伊凡”于16世纪中叶所建。
It was built by Czar Ivan the Terrible in the mid-16th century.
它们关闭了光合作用，减少了树叶中叶绿素的产量。
Photosynthesis shuts down, halting the production of chlorophyll in leaves.
到本世纪中叶的时候，由于温度的持续升高，这种情况会更糟。
This will get increasingly worse as temperatures rise further towards the middle of the century.
在20世纪中叶，美国约有一半的视障学龄学生读盲文。
During the middle of the 20th century, about half of visually impaired school-age students in America read Braille.
17世纪中叶至20世纪初，中国处于满洲统治下，不断开拓边境。
They were Manchus who ruled China from the mid-17th to early 20th centuries and expanded the country's borders.
17世纪中叶至20世纪初，中国处于满洲统治下，不断开拓边境。
They were Manchus who ruled China from the mid-17th to early 20th centuries and expanded the country's borders.
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