1·The method produces some rather curious results, too: it predicts, for instance, that there are over 200 times as many animal species as protozoan ones, which may strike ecologists as rather odd.
这种方法也得出了一些相当奇怪的结果：比如，动物物种是原生动物的物种的200多倍，生态学家都可能觉得难以置信。
2·Cryptosporidiosis (crypto) and isosporiasis are both caused by protozoan parasites.
隐孢子虫病（crypto）和等孢球虫病都是由原生动物寄生虫引起的。
3·At this concentration, control of protozoan parasites can be achieved.
在此浓度，控制原生动物寄生虫是可以实现的。
4·People get malaria from Anopheles mosquitoes that themselves are infected with a protozoan parasite called Plasmodium.
人们从疟蚊感染了疟疾，它们被感染的原生动物寄生虫称为疟原虫。
5·Plasmodium is a protozoan which causes malaria; it is the causative agent of the disease.
疟原虫是引起疟疾的原生动物；是疾病的病原体。