He spoke with authority on the topic.

他就这个课题发表权威意见。

《牛津词典》

Like any placebo, it must be dispensed with authority to be effective.

就像任何安慰剂一样，它只有在权威指导下（使用）才能发挥效用。

youdao

He teaches as one with authority.

他是作为有权柄之人来教训的。

youdao

If a further inquiry were felt to be appropriate, then it should be initiated by those with the required power and authority.

VOA: standard.2009.08.24

They've become forces of nature in the U.S. Economy, in the sense that people accept these letter grades with great authority.

他们和美国经济密不可分,在这种情况下,人们笃信机构的字母评级

耶鲁公开课 - 金融市场课程节选

And the leaders of the revolution set themselves up as a government of 30 men " with supreme authority."

革命领袖们,让自己组成，30，人政府,并拥有至高权威“

耶鲁公开课 - 政治哲学导论课程节选

He stopped relying on long, off-balance jumpers and started driving to the basket with authority.

WSJ: J.R. Smith, New York Knicks: Knicks' Smith Wins NBA Sixth-Man Award

On this summer evening he speaks with authority about Bosnia and Darfur and Iraq.

NPR: Behind in Polls, Biden Hopes for Iowa Surprise

Defining the issues is a matter of speaking with authority, clarity and consistent repetition.

NPR: A GOP Consensus at the Economic Conference