形容词中文翻译1
中文翻译：Unknown
同义词：
['impermeable', 'invulnerable', 'impregnable', 'impermeable']
例句：
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1. The walls ofthe castle were made of unpenetrable stone.
城堡的墙壁是由不可穿透的石头建造的。
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2. The armor was designed to be impermeable to bullets.
这种盔甲设计成对子弹无法穿透。
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3. The ocean is an impermeable barrier that separates land from sea.
海洋是一个不可穿透的屏障，将陆地与海洋分隔开来。