世界强国

例句：

1. 1. China is a world power with a vast population and rich resources.
   中国是一个拥有庞大人口和丰富资源的强国。
2. 2. The United States has always been a world power in the world.
   美国一直是世界上最强大的国家。
3. 3. The country's strong economy makes it a world power in the global economy.
   该国强劲的经济使其成为全球经济中的强国。