Aren't they just modified versions of male and man?

难道它们不只是male和man的修改版本吗？

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The modest man moderately modified the model in this mode.

谦虚者适度地用这种方式修改（改良）了模型。

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Man has also modified the face of the earth by draining marshes and cutting through mountains to build roads and railways.

人类还通过给沼泽地排水、凿石劈山、修建公路和铁路等方式，改变了地球的面貌。

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Humphry Repton modified this approach, reintroducing man-made embellishments such as terraces, statuary and stately avenues of trees.

ECONOMIST: The curious history of herbaceous borders

The second is the strikingly different outcome arrived at because Virginia Woolf restrained herself from dispatching her first, intemperate draft reply and carefully modified it so as not to hurt the feelings of the young man - a family friend, very much younger and less experienced than herself.

BBC: A Point of View: Mourning the loss of the written word