Flatworms such as these are just one of the 33, 000 known species in Japanese waters.
像这样的扁虫只是日本水域中33000已知的物种之一。
Schistosomiasis, or bilharzia, is a parasitic disease caused by trematode flatworms of the genus Schistosoma.
血吸虫病（又称裂体吸虫病）是由裂体吸虫属血吸虫引起的一种寄生虫病。
Schistosomiasis (or bilharziasis):Group of chronic disorders caused by parasitic flatworms of the genus Schistosoma (blood flukes).
血吸虫 属 寄生的扁虫引起的慢性疾病。
Schistosomiasis (or bilharziasis):Group of chronic disorders caused by parasitic flatworms of the genus Schistosoma (blood flukes).
血吸虫 属 寄生的扁虫引起的慢性疾病。
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