美国的零售商行业，在这十年来，发生了前所未有的变化。
Retailers in the us have seen a decade of unprecedented change.
信息技术的飞速发展对现代数学教育产生了深刻的影响，使得数学教学面貌发生了前所未有的变化。
The information flies technically to develop to bring about deep influence on modern mathematics education soon, making mathematics teaching feature take place the unprecedented variety.
从图书馆目录的功能、编目范围和检索特点所体现的内涵和外延的变化，可看出图书馆的编目、检索也发生了前所未有的变化。
They are embodied in the changes of catalogue function, cataloguing range and retrieval features, from which unprecedented changes in cataloguing and retrieval can also be seen.
随着新产业社会潮流的到来，企业的生产经营环境发生了显著的变化，使得传统的成本管理方法受到了前所未有的冲击。
With the arrival of social tideway of new industry, Manufacturing and running environment of enterprise gave obvious change and it made traditional cost management method suffer unprecedented impact.
宁波设市后对宁波旧城展开前所未有的开发、建设和改造工作，初步形成了近代市政制度，使宁波城市面貌发生了迥异于昔日的重大变化。
Through the development, construction and transformation of the old city, Ningbo has formed modern municipal administration system which enables the city to have had such great changes.
70年来，世界发生了前所未有的深刻变化，历史性地改变了人类的命运。
Over the past 70 years, the world has experienced profound changes as never before, making a difference to the destiny of mankind.
接下来，情况发生了变化。由于盖茨和巴菲特的财富不断膨胀，成为美国最有钱人所需要的财富数额也以前所未有的速度增长着。
Then something changed. As the fortunes of Gates and Buffett surged, the price of being America's richest man soared at an unprecedented rate.
接下来，情况发生了变化。由于盖茨和巴菲特的财富不断膨胀，成为美国最有钱人所需要的财富数额也以前所未有的速度增长着。
Then something changed. As the fortunes of Gates and Buffett surged, the price of being America's richest man soared at an unprecedented rate.
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