医生为啥戴口罩

仙仙

Once a small child asked his father, "Father, why do doctors always have to wear masks in the operating room?"
And the father replied, "In case something goes wrong, no one will know who they are."
一个小孩儿有次问他爸爸：“爸爸，为什么大夫进手术室都得戴口罩呢？”
爸爸回答说：“万一出了什么问题，就没人能认出他们是谁呗。”
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