The shift from silent to sound film at the end of the 1920s marks, so far, the most important transformation in motion picture history.
20世纪20年代末无声电影向有声电影的转变标志着迄今为止电影史上最重要的转变。
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The shift to farming also set in motion other important biological changes, notes biological anthropologist John Lukacs of the University of Oregon in Eugene.
When your eyes move, they shift the retinal images of the white/black edges in the pattern, activating the motion-sensitive neurons in your visual cortex.