a way of thinking and acting based on facts and what is possible, rather than on hopes for things that are unlikely to happen

His decision not to expand the business shows his down-to-earth realism. 他决定不扩大经营规模，这显示了他脚踏实地的务实作风。

in science and philosophy, the belief that objects continue to exist in the world even when no one is there to see them

paintings, films, books, etc. that try to represent life as it really is

The director used handheld camera techniques to add to the gritty realism of the film. 导演运用了手提式摄像机实拍手法，增加了影片的真实感。