双语例句原声例句
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蚊帐使疟疾流行地区的儿童死亡人数大约下降了20%。
Bed nets have cut childhood deaths by about 20 percent in malaria-endemic areas.
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在疟疾流行地区，人们可能产生局部免疫力，导致出现无症状感染。
In malaria endemic areas, persons may develop partial immunity, allowing asymptomatic infections to occur.
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在极少数情况下，来自拉沙热流行地区的旅行者将该病带到其它国家。
On rare occasions, travellers from areas where Lassa fever is endemic export the disease to other countries.
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Schistomiosis, which is a worm that lives in river waters, causes terrible diseases that are still prevalent in many parts of the world.
血吸虫,是一种生存在河水中的蠕虫,可以引起严重疾病,并仍在世界上众多地区广泛流行
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