unaffected

They shortened the book when they made the movie, but the basic story remained unaffected.他们拍电影时压缩了原著内容，但主要故事情节没有改变。

Her concentration was unaffected [=was not affected] by the constant noise.她的注意力没有被持续的噪声所影响。

He has a friendly and unaffected manner.他的举止友好而真挚。