HIV is a parasite that does not have enough proteins of its own to complete its life cycle.
HIV是一种寄生病毒,没有足够蛋白完成自己生命循环。
The parasite needs two hosts to complete its life-cycle: female Anopholes mosquitoes, and the bloodstream of a vertebrate where it invades and damages red blood cells.
这种寄生虫需要两个宿主来完成它的生活史:雌性按蚊和一种脊椎动物,而疟原虫可以侵入到脊椎动物的血流中然后破坏红细胞。
Malaria is caused by a parasite that spends part of its life cycle inside the mosquito, and is passed along to humans by mosquito bites.
疟疾的成因是寄生在蚊子上的疟疾原虫,并经由蚊子叮咬后传染给人类。
Malaria is caused by a parasite that spends part of its life cycle inside the mosquito, and is passed along to humans by mosquito bites.
疟疾的成因是寄生在蚊子上的疟疾原虫,并经由蚊子叮咬后传染给人类。
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