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要了解这种关联，得回头看看20世纪90年代的一系列事件。
To understand the connection, look back to the events of the 1990s.
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总之，20世纪见证了一系列得科技大爆炸。
All in all, 20 century had witnessed a series of technical explosion.
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总之，20世纪见证了一系列得科技大爆炸。
All in all, 20 century had witnessed a series of technical explosion.
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