This is the 7417th most frequent Chinese word.
蒙羅維亞
"蒙羅維亞" (Méngluówēiyà) is the Chinese name for Monrovia, the capital city of Liberia.
In this sentence, '蒙罗维亚' functions as a proper noun referring to a specific city.
蒙罗维亚是利比里亚的首都。
Monrovia is the capital of Liberia.
Here, '蒙罗维亚' indicates the location where the friend resides.
我有一个朋友住在蒙罗维亚。
I have a friend who lives in Monrovia.
In this context, '蒙罗维亚' is used to describe the geographical area whose climate is discussed.