Televised documentary derives from movies, the early homiletic works became a tool for framer to realize their propaganda purpose.

电视纪录片脱胎于电影，早期作品说教味较为浓重，大多是创作者实现宣教主旨的工具。

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At that time in Japan, photography was generally regarded as a documentary and reporting tool. In this environment, Hosoe began his exploration into expressing internal consciousness.

细江英公年轻时和文化艺术界交流十分广泛，当时国内对摄影的概念是以记录和报道为主，在这种情况下，细江英公开始了对表现内心意识的探索。

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He looked at a collection of settlers' photographs taken in the late 1800s by Solomon Butcher, whose work is by far the most important documentary tool for sod-house researchers.

ECONOMIST: Building houses