如果很严重，请看医生做进一步检查，有助于身体健康。
If necessary, please go to see a doctor and it is helpful to your health.
如果住宅周围的空气污染很严重，就不要出去跑步。
You should not run outside if the air pollution is serious where you live.
D博士说：“有一个巨大的误区是如果你有很严重的感冒，抗生素将会治好它。但是普通的感冒(或者流感)是由病毒引发的”。
"There's a huge misconception that if you have a pretty bad cold, antibiotics will just take care of it," says Dr. D. "But the common cold (and the flu) is caused by a virus."
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