市长公开承诺会改善城市的交通状况。

The mayor promised ___publicly to improve the city's traffic conditions.

请不要在公共场合大声打电话。

Please don't talk loudly on the phone ___publicly.

这家医院由政府公开运营，提供免费医疗服务。

This hospital is ___publicly operated and offers free medical services.