The cold virus has evolved just as much as you evolved.
病毒也在进化像你一样。
From this point of view then, the reason why you sneeze when you have a cold is that your cold the cold virus is using your body as a tool to replicate itself.
从这个角度看,感冒时打喷嚏是因为,感冒病毒用你的身体繁衍后代。
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