他不应该贬低同事的努力来抬高自己。

He shouldn't derogate his colleagues' efforts to make himself look better.

derogate 由前缀 de-（表示"向下"）和词根 rog（源自拉丁语 rogare，意为"询问、要求"）组成，加上动词后缀 -ate。原意是"降低要求"，引申为"贬低、贬损"的意思。在句中指通过贬低他人来抬高自己。