这里使用映射文件，类似于本系列第三期中用于XML的映射文件。
You use a mapping file for this, similar to the mapping files you used for XML in the third article of this series.
然后，我们要决定是否需要改变计划，是否需要继续第二期和第三期工程。
Then we should decide whether we need changes, whether we should go ahead with the second and third stages.
我看到，非洲区域的研究机构已具备良好的研究能力，分布全区各地的11所研究中心正对可能带来巨大变化的疟疾疫苗进行第三期试验。
I saw excellence in research and institutional capacities, where 11 centres across the region are now conducting phase 3 trials of a potentially revolutionary malaria vaccine.
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