### Chinese: 数据显示，美国是全球疫情最严重的国家，累计确诊病例4178027例，累计死亡146460例。
### English: Data show that the United States is the country with the worst epidemic in the world, with a total of 4,178,027 confirmed cases and 146,460 deaths deaths.
### Errors: There is a minor twice word repetition error in the English translation.

### Improved English: Data show that the United States is the country with the worst epidemic in the world, with a total of 4,178,027 confirmed cases and 146,460 deaths.
