But the textile boom lasted only several decades.
但是纺织业的繁荣只持续了几十年。
Green marketing seems recent, but advertising professionals grew interest in it several decades ago.
绿色营销似乎是最近才出现的，但广告专业人士几十年前就对它产生了兴趣。
Messrs Raynor and Ahmed work hard to avoid these mistakes by studying large bodies of date over several decades.
雷诺和艾哈迈德通过几十年来对大量数据的研究，努力避免这些错误。
Messrs Raynor and Ahmed work hard to avoid these mistakes by studying large bodies of date over several decades.
它有很多可取之处，因为它可能解决地球上的过度拥挤问题。
Researchers do not have a clear idea why poor children in San Jose achieved such great success several decades ago.
研究人员并不清楚为什么圣何塞的贫困儿童在几十年前取得了如此巨大的成功。
It has usually taken several decades for each group to be accepted into the mainstream of society in the host country.
每个群体通常要花上几十年的时间才能成为所在国社会的主流。
Indoor pollution, which includes sources like home heating and cooking, has remained constant over the past several decades despite advances in the area.
在过去几十年中，来源于诸如家庭供暖和烹饪等的室内污染持续存在，尽管在这方面已经有所改进。
Although many foods are naturally rich in salicylates, for the past several decades, food-processing companies have also been adding salicylates to foods as preservatives.
尽管许多食品天然富含水杨酸盐，但在过去几十年里，食品加工公司也一直在食品中添加水杨酸盐作为防腐剂。
Over the past several decades, the U.S., Canada, and Europe have received a great deal of media and even research attention over unusual phenomena and unsolved mysteries.
在过去的几十年里，美国、加拿大和欧洲收到大量关于不寻常现象和未解之谜的媒体关注，甚至还有研究者的关注。
For the past several decades, it seems there's been a general consensus on how to get ahead in America: Get a college education, find a reliable job, and buy your own home.
在过去的几十年里，人们对如何在美国取得成功似乎已经达成了一个普遍的共识：接受大学教育，找到一份可靠的工作，然后买一栋自己的房子。
Research during the past several decades on the nature of language and the processes that produce and make it understandable has revealed great complexity instead of underlying simplicity.
在过去的几十年中，对语言的本质以及产生并使其易于理解的过程的研究表明，它具有极大的复杂性，而不是潜在的简单性。
Noscapine has been primarily used as antitussive agent for several decades.
过去几十年中，那可丁一直被用作镇咳药。
Conversion of the Norwegian kingdom occurred over the next several decades.
在随后的几十年间挪威王国发生了变换。
Several decades ago, early childhood was spent playing games on the streets.
二三十年前，孩子们是在街上玩游戏度过童年的。
Floods across western Africa in September were the worst for several decades.
2007年9月份席卷西非的洪水是几十年来最严重的一次。
Of course, no single strategy is going to wean us off coal in several decades.
当然，没有一种对策是要让我们在未来几十年里逐渐摆脱煤炭的。
This is the most serious natural disaster to affect the region for several decades.
这是几十年来，该地区遭受的最严重的自然灾害。
And climate models predict a much more uncertain climate in the next several decades.
此外，据气候模型预测，今后几十年中，气候不确定性将大为增强。
Some schools have made strong efforts, over several decades, to build research capacity.
一些学校几十年来大力建立研究能力。
A successful data warehouse is a product whose lifecycle hopefully spans several decades.
成功的数据仓库是一个生命周期可以延续几十年的产品。
Evidence that plants obtain vitamins from the soil has been available for several decades.
几十年前就存在证明植物能从土壤中吸收维生素的证据了。
More floodgates are to be opened in the coming days for the first time in several decades.
未来几天，还有更多的防洪闸门将被开启，在几十年来尚属首次。
The worldwide prevalence of obesity has increased dramatically in the last several decades.
过去几十年里，世界各地的肥胖率已大大增加了。
Cells based on amorphous silicon, for example, have been in development for several decades.
非晶硅材料制成的电池已经开发了几十年，但它不像普通硅基太阳能电池。
Cells based on amorphous silicon, for example, have been in development for several decades.
非晶硅材料制成的电池已经开发了几十年，但它不像普通硅基太阳能电池。
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