nationwide

形容词 nationwide:

1. occurring or extending throughout a country or nation
   同义词：countrywide

副词 nationwide:

1. extending throughout an entire nation
   同义词：nationally, across the nation, across the country

1. Before starting the new service, the company carry out nationwide opinion poll.
   推出新的服务方式前，公司进行了全国范围的民意调查。
2. The new car is being launched with a nationwide sale campaign.
   新型汽车以开展全国的销售活动投放市场。
3. A speech that was broadcast nationwide; nationwide opposition to the tax hike.
   全国性的播出的演说; 全国性的反对税收增多
4. The chairman's speech will be broadcast nationwide.
   主席的讲话将向全国广播。

na.tion.wide

adv.（副词）
adj.（形容词）
Throughout a whole nation:
全国性的：在全国范围内：
例句：
a speech that was broadcast nationwide; nationwide opposition to the tax hike.
全国性的播出的演说；全国性的反对税收增多