This is the 8097th most frequent Chinese word.
castle
A large fortified building or set of buildings, typically built in the past for protection or as a residence for royalty or nobility.
The word 'castle' ('城堡' in Chinese) is used here as the literal architectural structure, specifically referring to an ancient castle.
我们参观了位于山顶的古老城堡。
We visited the ancient castle located on the mountain top.
In this sentence, 'castle' ('城堡') is referred to as a defensive structure, highlighting its historical role in protection and warfare.
那座城堡在历史上曾经是一个防御工事。
That castle once served as a defensive fortification in history.
Here, 'castle' ('城堡') is used metaphorically to represent an idealized and fantastical home, often seen in fairy tales.