This is the 200th most frequent Chinese word.
武汉
Wuhan: A major city in central China and the capital of Hubei province.
Here, '武汉' is used as a proper noun to refer to the city of Wuhan in China.
武汉是一个有悠久历史的城市。
Wuhan is a city with a long history.
In this sentence, '武汉' serves as the possessive subject to indicate the location or origin of the specific feature, the cherry blossoms.
你知道武汉的樱花很闻名吗？
Do you know that Wuhan's cherry blossoms are very famous?
The usage of '武汉' here indicates the place being described, focusing on its seasonal characteristics.