名词
中文翻译：Unknown
同义词：
['invasion', 'infiltration', 'penetration']
例句：
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1.The bacteria invaded the human body through the skin.
细菌通过皮肤入侵人体。
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2. The virus infiltrated the immune system, causing severe illness.
病毒侵入免疫系统，导致严重疾病。
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3. The military penetrated the enemy lines with a surprise attack.
军队以突袭的方式渗透到敌人防线。