verb · to pretend to be something or to disguise oneself in order to deceive

他伪装成一名医生混进了医院。

verb · a false appearance or deceptive behavior used to hide one's true nature or intentions

他的友善只不过是一种伪装。

verb · to hide or conceal personnel or equipment using paint, nets, or foliage, particularly in a military context

士兵们在头盔上插满草木进行伪装。