固然有人可能宣称这两部影片是故事长片(feature-length form)作为片的原型，但直到20世纪20 年代，惊险作为片才演化成为可能识别和定义的电影类型。
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feature-length form
长篇的形式
以上为机器翻译结果，长、整句建议使用 人工翻译 。
As a feature-length art form, it lasted less than twenty years, from 1912 to 1929, yet more than ten thousand features were made in that period in the United States alone.
NEWYORKER: The Artists
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