1.
There have is a lot of change here in the last 20 year.
在过去的二十年里这里发生了很多变化。
2.
Great changes have taken place here in the past 20 years.
在过去的二十年里这儿发生了很大的变化。
3.
Over the last two decades, scientists have observed a slight increase in temperature on the surface of the earth.
科学家们在过去的二十年里，通过观察发现了地球表面的温度有轻微的上升。
4.
In the past twenty years the amount of space debris has increased considerably, according to the European Space Agency, ESA.
根据欧洲太空局的报告，在过去的二十年里，太空残骸物的数量明显增加。
5.
In the past 20 years, however, the number of seriously underdeveloped countries in the world has increased from 27 to 48.
在过去的二十年里，世界上最不发达的贫困国家，已经从27个增加到48个。
6.
He has been languishing in jail for the past twenty years.
过去的二十年里他一直在监狱忍受折磨。
7.
The river has narrowed down over the past 20 years.
这条河在过去的二十年变窄了许多。
8.
The number of tigers has reduced abruptly in the last fifty years.
在过去的五十年里，老虎的数目锐减。
9.
The spending power of the pound has fallen over the last ten years .
在过去十年里，英镑的购买力已下跌。
10.
Tow saip enterprise have flourish over the past 10 year.
在过去的十年里乡镇企业蓬勃发展。
11.
There have been great advances in medicine in the last ten years.
在过去十年里，医学取得了巨大的进步。
12.
We have learned much in the last 40 years that we can apply to thinking about the twenty-first century.
在过去的四十年里，我们学到许多在思考二十一世纪时可以应用的东西。
13.
Fate had dealt grimly with him through the last four-and-twenty hours.
在过去的二十四小时里，命运之神对他是严酷的。
14.
The population level in this area has exploded during the past12 years.
在过去的十二年中这一地区的人口一直剧增
15.
China has been developing at a high speed in the past20 years.
在过去的二十年中,中国一直高速向前发展.
16.
In the 20-odd years since 1957 we have learned bitter lessons in this respect.
过去二十多年，我们在这方面的教训太沉痛了。
17.
Over the past 50 years, light industry has developed rapidly.
在过去的五十年里，轻工业有了长足的发展。
18.
Much evidence has been produced in the past decade to support catastrophism;
在过去的十年里提出了许多支持灾变说的证据。