This is the 6761st most frequent Chinese word.
比利時
Belgium.
Here, '比利時' is used as a proper noun to refer to the country Belgium.
比利時是歐洲的一個美麗國家。
Belgium is a beautiful country in Europe.
In this sentence, '比利時' is the name of a place visited, specifically Belgium.
我曾經去過比利時旅遊,那裡有很多歷史名勝。
I have traveled to Belgium, where there are many historical attractions.
Here, '比利時' is used as an adjective to describe the origin of the chocolate, meaning 'Belgian'.