How many ways are mentioned for the spread of the new coronaviruses?

有多少种新冠病毒传播途径被提及？

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To help stop the spread of coronavirus, people give up their usual greeting styles and invent safe ways.

为阻止冠状病毒传播，人们不再使用往常的问候方式，而是发明出安全的做法。

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Luckily, there's no shortage of ways to spread the word.

幸运的是，我们并不缺少传播文字的途径。

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The prevention of norovirus infection is challenging, but you can lower the likelihood of spread by being compulsive in several ways.

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We educate the public about the behaviors that lead to HIV and AIDS and ways to prevent the spread of these diseases.

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