Health experts say that the first few hours/days of a virus tend to be the most contagious, so spare your co-workers your germs and keep your sneezy self at home until the following day.
健康专家提示您：病毒在最初几小时或几天内极易传播，因此为了避免传染你的同事，你最好待在家中，直到感冒痊愈。
The virus and germs in hospital wastewater do harm to human health. It's the crux for selecting the disinfection.
医院污水中含有大量的病菌病毒，对人体健康危害极大，而选择适宜的消毒方法是关键。
The virus and germs in hospital wastewater do harm to human health. It's the crux for selecting the disinfection.
医院污水中含有大量的病菌病毒，对人体健康危害极大，而选择适宜的消毒方法是关键。
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