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.
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."
英国十八世纪中叶第一次出现了演出非戏剧类作品的建筑。
In England in the middle of the eighteenth century, buildings first were built for the performance of nontheatrical musical works.
从十四世纪中叶开始，细长而带有稍许的弧度是眉型的主流。
Thin, long and slightly curved eyebrows have been the major trend since the mid-14th century.
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.
阿姆斯特丹,到十七世纪中叶 也就是1650年,人口增长至十五万
Amsterdam, by mid-seventeenth century, by 1650, increases to 150,000 people.
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.
二十世纪中叶殖民制度的终结并没有使阿拉伯人从外部干涉中解脱出来。
The end of colonialism in the mid-20th century did not leave the Arabs free from external meddling.
二十世纪中叶最成功的剧作家是一位失败的钢琴销售员的儿子。
The most successful dramatist of the mid-20th-century was the son of a failed piano salesman.
在二十世纪中叶，全世界人口增长的速度远远地高于粮食产量的增长速度。
In the middle of the twentieth century, world population was expanding faster than food production.
可以预见，到本世纪中叶，海洋酸化的腐蚀性将强到足可溶解甲壳类动物。
The acidification of the oceans is already predicted tohave such a corrosive effect that unprotected shellfish will dissolve by themiddle of the century.
这些纪录和人类历史若合符节: 人类在十八世纪中叶开始使用石化燃料。
This fits with human history: in the middle of the 18th century people started to burn fossil fuels in order to power industrial machinery.
到了二十一世纪中叶，美国画家和雕塑家开始在世界范围内对艺术产生重大影响。
By the middle of thetwentieth century, painters and sculptors in the United States hadbegun to exert a great worldwide influence over art.
但是为了达到这一目标，将需要在本世纪中叶大幅度削减80%排放量。
But reaching that would require a drastic 80 percent cut in emissions by midcentury.
到了二十一世纪中叶，美国画家和雕塑家开始在 世界 范围内对艺术产生重大影响。
By the middle of the twentieth century, painters andsculptors in the United States had begun to exert a great worldwideinfluence over art.
到十九世纪中叶，它已经将不列颠人驱赶出西北部太平洋，并巩固了自己在西半球的霸权。
By the mid-19th century, it had pushed Britain out of the Pacific Northwest and consolidated its hegemony over the Western Hemisphere.
到世纪中叶的时候，俄罗斯的沙皇尼古拉斯一世残酷的统治好几年前就已经在这里失去了效力。
By mid-century, Russia had for years been in the stultifying grip of Tsar Nicholas I’s harsh orthodoxy.
到本世纪中叶，世界人口的增长预计将上升近百分之五十，人口数量将超过90多亿。
With world population expected to grow by nearly 50 percent to more than 9 billion people by midcentury, farmland is going to need to be much more productive.
类似的事情还有3D电影。大约上世纪中叶的某个时候，全世界都认定3d电影将是电影院的未来。
Likewise, there was a time around the middle of the last century when the world was briefly convinced 3d was the future of cinema.
但是假如风持续的以一个相同的速率增长的话，那么在本世纪中叶，飓风将变得更具破坏力。
But if winds continue to pick up at the same rate, hurricanes could become far more damaging by the middle of the century.
直到二十世纪中叶人们才认识到这种生活在沙漠的浅褐色孤独的昆虫是与蝗灾中的红和黄色蝗虫同种。
Only in the mid-20th century was it realized that the light brown solitary desert-dwelling insect was the same species as the red and yellow locusts of the plagues.
如果进行得顺利的话，本世纪中叶就能抵消上升的气温，到达地球的光照将会减少1.1%。
To offset the rise in temperature expected by the middle of the century if things carry on as they are, the amount of sunlight reaching the Earth's surface would have to be cut by just 1.1%.
研究人员们最近估计，到本世纪中叶，哺乳类动物的物种数量将从目前的5500种上升至7500种。
Researchers recently estimated that the total mammal species count will rise from about 5, 500 now to 7, 500 by mid-century.
到本世纪中叶，世界人口的三分之二将居住在城市，对能源、水、住房和教育的需求将是巨大的。
By mid-century, two-thirds of the world's population will live in cities. The demands for energy, water, housing, and education will be enormous.
到本世纪中叶，世界人口的三分之二将居住在城市，对能源、水、住房和教育的需求将是巨大的。
By mid-century, two-thirds of the world's population will live in cities. The demands for energy, water, housing, and education will be enormous.
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