dog-eat-dog
竭尽全力争夺有限的资源或机会
口语·形容残酷竞争
英文释义
cutthroat competition; a situation characterized by ruthless and aggressive behavior
例句
The business world is dog-eat-dog; you can't trust anyone.
典故来源
与“dog eat dog”同源，强调竞争的无情和残酷。