现有的疫苗的英文

currently available vaccines existing vaccines

• 现有:    now available; exi ...
• 的:    4次方是 The fourth po ...
• 疫苗:    vaccinum; vaccine; ...

例句与用法

1. Currently available vaccines , existing vaccines
   现有的疫苗
2. Because malaria parasites are far more complex than disease - causing viruses and bacteria for which vaccines now exist , malaria vaccines may never carry the same clout as , say , measles or polio shots , which protect more than 90 percent of recipients who complete all recommended doses
   因为疟疾寄生虫远比致病的病毒与细菌复杂，而现有的疫苗也都是针对病毒与细菌，因此疟疾疫苗也许永远无法像麻疹或小儿麻痹疫苗那样，只要打完所有建议的剂量后，接种的人90 %以上就可以受到保护。