例句與造句

1. Analysis of the results of measles vaccine mass immunization campaign in shandong province
   山東省麻疹疫苗強化免疫結(jié)果分析
2. Epidemiological evaluation on the effect of measles vaccine mass immunization campaign in shandong province
   山東省麻疹疫苗強化免疫效果的流行病學評價
3. Analysis on the effect of measles catch up mass immunization campaign in three areas of hebei province
   河北省石家莊等三市麻疹疫苗初始強化免疫效果分析
4. It's difficult to find mass immunization in a sentence. 用mass immunization造句挺難的