According to the experts, the country is in urgent need of understanding the infection level in different age groups in different time periods in order to map out further prevention and control plan.
据专家所说，中国迫切需要弄清在不同的时间段不同的年龄人群中感染程度，以便能够制定出进一步的防控计划。
According to the experts, the country is in urgent need of understanding the infection level in different age groups in different time periods in order to map out further prevention and control plan.
据专家所说，中国迫切需要弄清在不同的时间段不同的年龄人群中感染程度，以便能够制定出进一步的防控计划。
应用推荐