George Crookham was a rich farmer. He also was a self-taught scientist.

克鲁克汉姆是富裕的农场主。他也是名自学成才的科学家。

From George Crookham, John Wesley Powell received a wide, but informal, education.

从乔治·克鲁克汉姆那里，约翰·韦斯利·鲍威尔接受了广泛但非正式的教育。

Missus Powell believed young john needed the guidance and protection of a man. So she asked a friend, George Crookham, for help.

鲍威尔太太认为小约翰需要一个男人的指导和保护。于是她向朋友乔治·克鲁克汉姆求助。