N-PLURAL a formal document accrediting a diplomatic officer to a foreign court or government (委派外交官到外国法院或政府的)国书; 信任状
letters of credential翻译
N-PLURAL（复数型名词） a formal document accrediting a diplomatic officer to a foreign court or government (委派外交官到外国法院或政府的)国书; 信任状