传毒物

例句：

1. 1. The doctor warned us about the dangers of inhaling polluted air.
   医生警告我们空气污染的危险。
2. 2. The scientist discovered a new virus that can cause cancer.
   科学家发现了一种能引起癌症的新病毒。
3. 3. The government has been trying to contain the spread of the virus.
   政府一直在努力控制病毒的传播。