adj.权威的，权威性的，命令式的，专断的，权威式的

Eric speaks in authoritative tones.
埃里克以命令的口吻说话。
Tom has a commanding presence and an authoritative voice.
汤姆仪态庄重，声音威严。
The policy was issued by the authoritative body, ensuring its legitimacy and enforceability.
这项政策是由权威机构发布的，确保了其合法性和可执行性。
The dictionary is considered the most authoritative source for word definitions.
该词典被认为是单词定义最权威的来源。
The judge's decision is authoritative and binding on all parties involved.
法官的决定具有权威性，对所有相关方都有约束力。
According to the authoritative report, climate change is accelerating at an alarming rate.
根据这份权威报告，气候变化正在以惊人的速度加速。
As an expert in her field, her opinions carry great authoritative weight.
作为该领域的专家，她的意见极具权威分量。
The research was conducted by an authoritative institution, ensuring the reliability of the findings.
该研究由一个权威机构进行，确保了研究结果的可靠性。
The historian's book is seen as the authoritative account of the nation's founding.
历史学家的这本书被视为关于国家建立的权威记述。
The judge's ruling set an authoritative precedent for similar cases in the future.
法官的裁决为今后类似的案件设立了权威先例。
The guidelines issued by the health organization are authoritative for global COVID-19 response strategies.
卫生组织发布的指南是全球应对COVID-19策略的权威依据。
The encyclopedia is recognized as an authoritative reference work covering a wide range of subjects.
该百科全书被公认为涵盖广泛学科的权威参考著作。