名词
中文翻译：堡垒
同义词：
['fortress', "stronghold例句：1. The castle was a popular destination for tourists during the Middle Ages.（这个城堡是中世纪时期游客的热门目的地。）2. The king's bastide was guarded by a large army.（国王的要塞被一支庞大的军队守卫。）"]
例句：
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1. The castle was a popular destination for tourists during the Middle Ages.
这个城堡是中世纪时期游客的热门目的地。
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2. The king's bastide was guarded by a large army.
国王的要塞被一支庞大的军队守卫。
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3.The bastide was surrounded by a deep moat and a high wall.
要塞被一个深沟和高墙包围。