在PTE中,无论是Summarise Spoken Text 还是 Re-tell Lecture的考题大都是从真实的讲座或者演讲中截取的,
If you look at malaria or HIV, human immunity isn’t very good, so to say that we can do better than mother nature is very difficult. Decades and decades have gone by working on AIDS and Larry vaccines without progress, but in contrast, when it comes to Zika and varuses like Zika, our immune response is very strong, long lasting than possibly lifelong. So we think that there will be approaches that give safe and effective vaccines, it usually takes five to ten years to bring a vaccine to market at best. We’re hoping in two or three years of vaccine might be widely. So people of Florida should not be looking to vaccine as a short term, solution to a serious problem. That’s right.