authority

/əˈθɔːr.ə.t̬i/

名词

权威人士；专家；泰斗
She's a world authority on 19th-century Irish history.
她是19世纪爱尔兰历史方面的国际权威。
威信；权力；管辖权
The teacher had the authority to enforce the school rules.
老师有权力执行学校规定。