市长在新闻发布会上宣布了一项新的环保政策。

The mayor ___proclaimed a new environmental policy at the press conference.

他灿烂的笑容明显表明他对结果很满意。

His bright smile ___proclaimed his satisfaction with the result.

市长热情地宣布这座城市为全国最宜居的地方。

The mayor ___proclaimed the city as the most livable place in the country.