4周搞定2000+托福核心词
excusable = ex(向外) + cus(原因) + able(能…的) = 能向外是有原因的→可以原谅的
expediency = ex(向外) + pedi(脚) + ence(性质) + y(表名词) = 脚向外踏→权宜
abrasion = ab(表加强) + ras(刮擦) + ion(表名词) = 磨损
abstraction = abs(离去) + tract(拉) + ion(表名词) = 被拉开→抽象
向外扩展→扩大
expansion
常考释义
And shrub expansion in these environments does seem to persist, almost to the point of causing a shift.
而灌木丛扩张似乎不会延续，就算达到了转变的地步。
来源于：听力OFFICIAL9 L2n. 膨胀，扩张，扩展
Despite the recession the company is confident of further expansion.
尽管经济衰退，公司对进一步扩展仍充满信心。
They took a staunch stand about slavery expansion.
他们在奴隶制扩张的问题上态度强硬。
来自《美国内战与重建1845-1877第8集》
图片源自网络
After 1850, however, the expansion of foods more regularly kept pace with population growth, though the poorer classes remained malnourished.
然而，1850年后，尽管贫困阶层仍然营养不良，食物的增加慢慢跟上了人口增长的节奏。
来源于：阅读OFFICIAL51 P3The dramatic expansion of the railroad network in the 1850s, however, strained the financing capacity of local governments and required a turn toward private investment, which had never been absent from the picture.
然而，1850年铁路网络的急剧扩张，给当地政府的融资能力造成了不小的压力，铁路资金的需求转向了私人投资方向，而私人投资一直以来都是铁路资金来源的一部分。
来源于：阅读OFFICIAL50 P1The raccoon's expansion in various areas may also be due to the spread of agriculture.
浣熊在不同地区的扩展分布也许也是因为农业的发展。
来源于：阅读OFFICIAL38 P2The expansion of agriculture, however, does not necessarily lead to rapid increases in their abundance.
农业的扩张并不一定会引起浣熊数量的急剧增长。
来源于：阅读OFFICIAL38 P2The control of coyotes in the prairie region in the 1950s may have been a factor in raccoon expansion.
二十世纪50年代平原地区丛林狼的控制也许是浣熊向外扩张的原因之一。
来源于：阅读OFFICIAL38 P2The extermination of the wolf from most of the contiguous United States may have been a critical factor in the raccoon's expansion and numerical increase.
在相邻的美国，狼的灭绝或许是浣熊数量快速增长的关键因素。
来源于：阅读OFFICIAL38 P2However, good land may itself be limited—for example, within the confines of a river valley where neighbors are in the same position, having filled up the whole of the desirable habitat available in their home territories, expansion is also problematic.
然而，好的土地毕竟稀少——比如，在河谷里，临河的肥沃土地总是有限的。当人们聚集在一个地方，并且把所有的好的栖息地都占据了以后，人口的扩张就成了一个问题。
来源于：阅读OFFICIAL35 P2The expansion and contraction of the continental glaciers caused huge and uneven rises and falls in sea levels worldwide.
大陆冰川的膨胀和收缩引起全球海平面巨大且不平稳地上升和下降。
来源于：阅读OFFICIAL49 P1The Industrial Revolution had several roots, one of which was a commercial revolution that, beginning as far back as the sixteenth century, accompanied Europe’s expansion overseas.
工业革命有几个根源，其中之一就是商业革命，（商业革命）早在十六世纪就已经发起，它伴随着欧洲在海外的扩张。
来源于：阅读OFFICIAL49 P3Among them were a large number of nonconformists whose religious principles encouraged thrift and industry rather than luxurious living and who tended to pour their profits back into their business, thus providing the basis for continued expansion.
其中，有大量的异教徒，他们的宗教原则鼓励节俭和勤勉，而不是奢侈的生活，他们往往把利润回流到他们的业务中，从而为持续扩展提供基础。
来源于：阅读OFFICIAL49 P3The first of these was the expansion of Greek civilization throughout the Middle East.
首先是希腊文明在整个中东地区的扩张。
来源于：阅读OFFICIAL43 P1For example, he argued that the introduction of domesticated vines and olives allowed a substantial expansion of land under cultivation and helped to power the emergence of complex society.
例如，他认为，引进家种的葡萄和橄榄使得大量耕种土地扩张，并有利于推动更加复杂的社会的出现。
来源于：阅读OFFICIAL41 P3Later on, it became very difficult to change because of the significant expansion of these populations.
后来，由于人口的急剧膨胀，这种生活方式就难以改变了。
来源于：阅读OFFICIAL21 P2The story of the westward movement of population in the United States is, in the main, the story of the expansion of American agriculture—of the development of new areas for the raising of livestock and the cultivation of wheat, corn, tobacco, and cotton.
美国西进运动的故事大体说来其实就是美国农业扩张的故事，也就是一场开辟用于饲养家畜以及种植小麦、玉米、烟草和棉花的新土地的运动。
来源于：阅读OFFICIAL20 P1The sheer scale of the investment it took to begin commercial expansion at sea reflects the immensity of the profits that such East-West trade could create.
开启海上商业扩张投入的资金规模反映出东西方贸易所能创造出的巨大财富。
来源于：阅读OFFICIAL17 P1Among the key factors behind this growth were increased agricultural productivity and an expansion of trade.
继续保持增长拉动经济增长最关键的因素是农业生产力的提高和贸易规模的扩大。
来源于：阅读OFFICIAL10 P3Dutch land reclamation in the Netherlands in the sixteenth and seventeenth centuries provides the most spectacular example of the expansion of farmland: the Dutch reclaimed more than 36.000 acres from 1590 to 1615 alone.
荷兰的土地复垦无疑是16到17世纪中最引人注目的：单单是在1590年到1615年间，荷兰就开垦了36000多英亩土地。
来源于：阅读OFFICIAL10 P3Increased agricultural production in turn facilitated rural industry, an intrinsic part of the expansion of industry.
农业生产的发展反过来又促进了工业中的部分——农村工业的发展。
来源于：阅读OFFICIAL10 P3And shrub expansion in these environments does seem to persist, almost to the point of causing a shift.
而灌木丛扩张似乎不会延续，就算达到了转变的地步。
来源于：听力OFFICIAL9 L3Clearly, much planning and central control were involved in the expansion and ordering of this great metropolis.
显然，这座伟大的都市的管理和扩张时经过了精心的规划和集中管理的。
来源于：阅读OFFICIAL8 P1But, there's a type of rapid expansion, what might be called a hysterical or irrational boom that pretty much always leads to a bust.
然而，确实存在一种剧烈的行业扩张，被称为超速或非理性繁荣，它通常以产业泡沫破裂而终结。
来源于：听力OFFICIAL6 L2The expansion of desert-like conditions into areas where they did not previously exist is called desertification.
沙漠漫延到非沙漠区域叫做沙漠化。
来源于：阅读OFFICIAL2 P1The ensuing rapid expansion of irrigation agriculture, especially from the 1950s onward, transformed the economy of the region.
灌溉农业的迅速扩张，特别是20世纪50年代之后，改变了这一地区的经济。
来源于：阅读OFFICIAL3 P2n. 发展
It became the wonder product of the new world of industrial expansion – ‘the material of a thousand uses’.
它成为工业发展新时代的神奇产品—“百变材料”。
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