a work,such as a film or television program,presenting political,social,or historical subject matter in a factual and informative manner and often consisting of actual news films or interviews accompanied by narration
英
美
- 常常由新闻电影或采访伴以叙述构成的电影或电视之类作品,以实事求是的方式反映政治、社会或历史题材,