A special mandate or authority that grants one the power to act decisively, often implying ultimate or unquestionable power; supreme authority; a special prerogative to act independently.
老板对新项目负责人说，只要能解决问题，你就拥有尚方宝剑，大胆去做吧。
The boss told the new project manager, "As long as you can solve the problem, you have been granted supreme authority, so proceed boldly."
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