The quality of life for gay men has improved over the last two decades.
男同性恋者的生活质量过去20年有了改善。
That is triple the number from two decades ago.
这个数字是二十年前的三倍。
快二十年了。
They stayed in China for about two decades.
他们在中国总共停留了约二十年。
The trends of the past two decades give cause for optimism.
而过去二十年的变化趋势还是值得乐观地看待的。
What began more than two decades ago is still in the focus of NASA.
二十年前开始的事情，现在仍然是NASA的工作重点。
The history of the past two decades suggests the two can coexist.
过去20年的历史说明二者同时存在。
Think of what's possible today that was unthinkable two decades ago.
想想有多少在今天可能、而在20年前却不可思议的事。
For two decades or so, the stuff was the darling of battery engineering.
之后的二十年中，这种材料一直是电池技术的宠儿。
Over the same two decades, deaths from heart disease have declined 30%.
与此同时心脏病死亡病例也下降了30%。
The NBA has been patiently building its market for more than two decades.
而NBA则耐心地花了超过二十年的时间来培育市场。
But other countries can claim notable improvement in the past two decades.
但其它国家的指数在过去20年中也有了显著提高。
We have been engaged for two decades in the manufacture of such equipment.
我们从事这类设备的制造已20年了。
The idea of a large ancient ocean on Mars has been debated for two decades.
火星上是否存在远古海洋的想法已经争论了20年。
Four and a half million refugees have returned home after two decades of war.
450万的难民在历时20载的战乱后得以重返家园。
Over the next two decades, he tried every marketing gimmick he could think of.
在接下来的二十年里，他试过了种种所能想到的营销手段。
But the past two decades offer little evidence that Japan can make that shift.
但在过去的二十年中，没有证据表明日本能够完成这样的转变。
Spotted owls are on the decline despite two decades of work to bring them back.
尽管在过去二十年里，人们为了保护斑点猫头鹰做了很多工作，但斑点猫头鹰的数量仍然处于下降趋势。
However, two decades ago there was nothing like the current global credit crunch.
然而，二十年前没有像现在的全球金融危机这样的东西。
Over the course of the last two decades the increase in real income was only 10%.
在过去20年中实际收入仅增长了10%。
This was almost two decades ago, so the cartoons were in English without subtitles.
这几乎是二十年前的事了，所有英文卡通片都是没有字幕的。
Over the past two decades champagne shipments went up by an average of 2.2% a year.
过去20年里，香槟销售量平均每年增长2.2%。
Researchers have tried for two decades to find a microbicide to fight H.I.V. transmission.
研究人员二十年来一直在试图寻找一种抗病毒凝胶能够防治艾滋病毒的传播。
Over the next two decades the makeup of tourism around the world will change significantly.
在二十年之后，世界旅游市场的组成将发生巨大的转变。
Researchers have tried for two decades to find a microbicide to fight H. I. V. transmission.
研究人员二十年来一直在试图寻找一种抗病毒凝胶能够防治艾滋病毒的传播。
Researchers have tried for two decades to find a microbicide to fight H. I. V. transmission.
研究人员二十年来一直在试图寻找一种抗病毒凝胶能够防治艾滋病毒的传播。
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