名词
中文翻译：底片
同义词：
['negative', 'film', 'roll']
例句：
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1. The photographer took a series of pictures using the old film roll.
摄影师用旧胶卷拍摄了一系列照片。
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2. She was disappointed that she couldn't get her favorite picture from the negative.
她很失望，因为她不能从底片上得到她最喜欢的那幅画。
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3. The camera was damaged during the process of developing the film.
在冲洗胶卷的过程中，相机被损坏了。