原级：microfilm
1. 缩微卡片：microfilmrecorder 缩微胶片记录器 | microfilms 缩微卡片 | microfilmstrip 缩微胶卷
1. Microfilms may generate a large number of Internet hits, but they are hopeless at generating revenue.
2. Calling themselves the " Chopsticks Brothers ", they started making microfilms in 2007.
3. Like shorts in Western countries, microfilms are seen as a training ground for aspiring feature filmmakers.
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4. Chinese advertisers have found a new niche in the form of online microfilms.