primary drug-resistance rate

例句：

1. 1. Theprimary drug-resistance rate inthis region is still high.
   该地区的初级药物抗药率仍然很高。
2. 2. The studyfound that the primary drug-resistance rate had decreased by 10%.
   研究发现，初级药物抗药率下降了10%。
3. 3. The government has beenworking to reduce the primary drug-resistance rate in the country.
   政府一直在努力降低该国的初级药物抗药率。