This is the 7470th most frequent Chinese word.
西汉
Western Han Dynasty.
In this sentence, '西汉' is used as a proper noun referring to a specific historical dynasty in China.
西汉是中国历史上的一个重要朝代。
The Western Han is an important dynasty in Chinese history.
Here, '西汉' is used to denote the cultural and historical context associated with the Western Han dynasty.
研究西汉的文化可以帮助我们理解古代中国。
Studying the culture of the Western Han can help us understand ancient China.
In this context, '西汉' refers to the historical period and events of the Western Han dynasty.