@David_LKaplan @alexmeshkin When there were mass testing sites, many were outdoors, often drive through or walk up.
@David_LKaplan@alexmeshkin当有大规模的测试场地时，很多都在户外，经常开车经过或步行。
@David_LKaplan @alexmeshkin When there were mass testing sites, many were outdoors, often drive through or walk up.
@David_LKaplan@alexmeshkin当有大规模的测试场地时，很多都在户外，经常开车经过或步行。