基本解释adj.朴实的同根派生 英汉例句用作形容词 (adj.)Marxism is a plain thing,a very plain truth.马克思主义是很朴实的东西，很朴实的道理。The plain language in the book gave some colour of truth to the story.书中所用的朴实的语言为该故事增添了不少真实感。