他们研究了半个世纪以来世界各地渔业的数据。
They have looked at half a century of data from fisheries around the world.
半个世纪后，通用汽车公司成为经营不善的典型例子。
Half a century later GM is a typical example of poor management.
半个世纪后，通用汽车公司成为了一个管理不善的典例。
Half a century later, GM is a typical example of poor management.
故事发生在大约半个世纪以前。
这件事情搁置至今已经有半个世纪了。
旧王的和平持续了半个世纪。
这在半个世纪前本无法实现。
但这部法律的初稿在半个世纪前就诞生了。
接下来的半个世纪里，这套系统运作良好。
经过半个世纪的忽视，单曲低调的的回潮。
After a half century of neglect, the lowly single is back on top.
半个世纪以来，双方建立了深厚的传统友谊。
Over the past half a century, both sides have established a profound traditional friendship.
然而，第一个慢性中毒病例发生在半个世纪以前。
However, the first chronic case took place half a century ago.
过去的半个世纪内，美国一直是世界的面包篮子。
The United States has been the world’s breadbasket for more than half a century.
半个世纪前去月球旅行是难以想象的。
Half a century ago it's difficult to conceive of travelling to the moon.
半个世纪以前很难想象去月亮上旅行。
Half a century ago it's difficult to conceive of traveling to the moon.
这两个国家的冲突已经跨越了半个世纪。
The conflict between the two countries has spanned more than half a century.
半个世纪过去了，当时的欢欣鼓舞已早早烟消云散。
或许有几年了，弄不好已经有半个世纪了。
There may be several years, calling such have been half a century.
半个世纪以来，路边商城一直都是郊区居民的商服中心。
FOR half a century, strip malls were the commercial heart of suburbia.
而那个国家已经拥有了这种武器长达半个世纪。
在大半个世纪以来辐照食品的技术变得愈加突出。
The technology to irradiate food has been around for the better part of a century.
此后，他的童话灵感源源不断地迸发了半个世纪！
After this, his fairy tale inspiration was burst out for half a century continually!
为什么在过去的半个世纪里魏特琳却被公众遗忘？
Why had Vautrin been forgotten by the public for the past half century?
现代语言协会对于语言类专业研究人数的调查进行了半个世纪。
The Modern language Association has been tracking language enrollment for half a century.
现代语言协会对于语言类专业研究人数的调查进行了半个世纪。
The Modern language Association has been tracking language enrollment for half a century.
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