In English, the word for castle is "castle". The word comes from the Latin word "castellum", which means a fortified building or fortress. Here are some example sentences:

The castle was built in the 12th century.

The castle was surrounded by a moat.

The king lived in the castle.

在英语中，城堡的说法是"castle"。这个词来自拉丁语"castellum"，意思是一座有防御性的建筑或堡垒。下面是一些例句：

城堡建于12世纪。

城堡周围有一条护城河。

王住在城堡里。