authority

/əˈθɔrəti/

the power or right to give orders or make decisions

中文释义：权威；权力；当局

The local authority has implemented new regulations to reduce air pollution.

地方当局已实施新规定以减少空气污染。

He is considered an authority on climate change due to his extensive research.

由于其广泛的研究，他被认为是气候变化方面的权威。