In the 20th century, first it was the movies, then radio, then television that seemed to spelldoom for the written world.
在20世纪,先是电影,然后是收音机,再然后是电视机,似乎都给书面世界带来了灭顶之灾。
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This assumption, though safe for various static analyses for compiler optimizations, could spelldoom for an anti-virus technology by increasing the time and space costs of the analyses.