Protozoan Diseases, Protozoa are one-celled animals found in great numbers almost everywhere in nature.

原虫疾病。原虫是大自然中各处都能大量发现的单细胞动物。

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Protozoan Diseases, Protozoa are one-celled animals found in great numbers almost everywhere in nature.

原虫疾病。原虫是大自然中各处都能大量发现的单细胞动物。

youdao