名词
中文翻译：Unknown
同义词：
['resistance', 'resistance to disease', 'immunity to infection']
例句：
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1. The vaccine providesher with immunity to the virus.
这种疫苗使她对病毒具有免疫力。
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2. The immune system is responsible for fighting off infections.
免疫系统负责抵抗感染。
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3.The patient has developed a strong immunity to the bacteria.
病人已经对这种细菌产生了强烈的免疫力。