故事发生在大约半个世纪以前。
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.
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.
虽然鲁迅生活在半个世纪以前，但我们今天仍可以从他的著作中学到许多东西。
Although Lu Hsun lived half a century ago, there is much that we can learn from his works today.
她是英国人，在那时--半个世纪以前，她成为我们这个爱尔兰海滨小镇的“外星人”。
She was English, which in those days — we are speaking of half a century ago — made her an exotic species in our little Irish seaside town.
英国大学正遭遇和半个世纪以前声名显赫且人才济济的英国摩托车制造商以及银行业的一样的境况。
With their famous names and skilled workers, Britain's universities are in the same state as its motorbike-makers and Banks were half a century ago.
半个世纪以前，可供对比的信息是如此之少以致于客户几乎无法知道他们基金经理的业绩是否好于同行。
Half a century ago little information was available and clients barely knew whether their fund manager was outperforming his peers.
2003年的这部戏，对罗伯茨来说真是穿越时空，因为电影故事是发生在半个世纪以前的。
Roberts went retro for this 2003 film, which was set exactly half-a-century earlier.
我本人也非常怀念半个世纪以前的饮食，即便那时大多数中国人家中的厨房几乎都没有什么储备。
I myself still remember the tastes of food half a century ago, although at that time very few Chinese households could afford to store a great variety of food in their kitchens.
半个世纪以前，日本是个穷困的国家；今天索尼和丰田是这个星球上最著名和最强大的公司之一。
Half a century ago, Japan was a poor country: today Sony and Toyota are among thebest-known and mightiest companies on the planet.
半个世纪以前，城市居民只约占世界人口的三分之一，但到2005年，城市居民预计达到一半以上。
Half of a century ago, townsmen only accounted for a third of world population, but it's predicted to reach over a half until 2005.
半个世纪以前，城市居民只约占世界人口的三分之一，但到2005年，城市居民预计达到一半以上。
Half century ago, only about one third of the world population belongs to cities, but in the year 2005, it will comes to more than estimated one half.
手术治疗的历史可以追溯到半个世纪以前，而且回顾那些通往现代有效手术的经验也是很有教育意义的。
The history of surgical treatment for obesity goes back half a century, and it will be instructive to look at some of the experience that led to modern effective operations.
凭借着丰富的柚树、石油、天然气和其他资源，缅甸半个世纪以前曾是东南亚区域内相对富有的国家之一。
Rich in teak, minerals, oil, gas and much else, half a century ago Myanmar was one of the more prosperous countries in the region.
在北美这种动物现存一万只左右，他们全部都是由半个世纪以前的一个的物种进化而成，当时这个物种的数量只有三十只。
There are about 10,000 of these animals in North America. All of them are descended from an original population of just 30 that was introduced half a century ago.
在北美这种动物现存一万只左右，他们全部都是由半个世纪以前的一个的物种进化而成，当时这个物种的数量只有三十只。
There are about 10, 000 of these animals in North America. All of them are descended from an original population of just 30 that was introduced half a century ago.
我知道父亲，他有他的想法，宝塔村不仅仅是我们一家人的，那里还聚集着半个世纪以前就聚集在那里的他的很多熟人、同学、亲戚。
I know his father, he has his ideas, Pagoda Village, not just our family, where also gathered together half a century ago, where a lot of his acquaintances, classmates, relatives.
半个世纪以前，露丝小姐创造了世界上第一个金发娃娃以来，这个用她小女儿昵称芭芭拉命名的“芭比娃娃”成了全世界小女孩的心爱玩具。
Half a century ago, miss rose to create the world's first blond hair, the baby with her little daughter since the nickname Barbara named "barbie" became a little girl to love toys around the world.
半个世纪以前，露丝小姐创造了世界上第一个金发娃娃以来，这个用她小女儿昵称芭芭拉命名的“芭比娃娃”成了全世界小女孩的心爱玩具。
Half a century ago, miss rose to create the world's first blond hair, the baby with her little daughter since the nickname Barbara named "barbie" became a little girl to love toys around the world.
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