所谓的常见病菌往往并不包括一些难缠的病毒，而且测试结果也是在实验室环境里得出的，无法真实反映出实际使用时的复杂环境。
They often don't include all pesky germs, and are based on laboratory tests that don't represent the imperfections of real-world use.
所谓的常见病菌往往并不包括一些难缠的病毒，而且测试结果也是在实验室环境里得出的，无法真实反映出实际使用时的复杂环境。
They often don't include all pesky germs, and are based on laboratory tests that don't represent the imperfections of real-world use.
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