形容词
中文翻译：不可摧毁的
同义词：
['indestructible', "impervious例句：1. The city's defenses are unbreakable", 'ensuring its safety.（城市的防御是坚不可摧的，确保了其安全。）2. The structure is unbreakable', 'making it difficult to demolish.（结构是坚不可摧的，使得拆除变得困难。）']
例句：
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1. The city's defenses are unbreakable, ensuring its safety.
城市的防御是坚不可摧的，确保了其安全。
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2. The structure is unbreakable, making it difficult to demolish.
结构是坚不可摧的，使得拆除变得困难。
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3. The mountain range is unbreakable, providing a natural barrier against invasion.
山脉是坚不可摧的，为抵御入侵提供了自然的屏障。