This is the 1781st most frequent Chinese word.
武漢
Wuhan: A major city in central China, the capital of Hubei province.
In this sentence, '武漢' is used as a proper noun referring to the name of the city Wuhan.
武漢是中國的一個重要城市。
Wuhan is an important city in China.
Here, '武漢' specifies the origin of the food, indicating Wuhan as the location known for this dish.
武漢盛產熱乾麵，是當地的特色美食。
Wuhan is famous for hot dry noodles, a local specialty.
In this instance, '武漢' marks the location where a certain activity can be undertaken, pointing to Wuhan as the place of interest.