Video: China’s virus-killing system on trial in HK 中國病毒殺滅系統在香港試用 If it works in Hong Kong, it’s big news for the world. Huge numbers of lives can be saved if the system proves transferable 如果它在香港奏效，這對世界來說是個大新聞。 如果系統證明可轉移，則可以挽救大量生命.
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