This is the 6118th most frequent Chinese word.
居庸
"居庸" refers to "Juyong," historically a mountain pass in China known as Juyongguan, part of the Great Wall.
居庸 is a proper noun here, specifically referring to a historical location, the Juyong Pass individually.
居庸关是中国著名的长城关隘之一。
Juyong Pass is one of China's famous Great Wall passes.
居庸 continues to serve as a proper noun, emphasizing its historical significance and identity.
居庸关的历史可以追溯到古代。
The history of Juyong Pass can be traced back to ancient times.
居庸 is used to highlight the location in geographical or tourism context.