名词
中文翻译：囊蚴
同义词：
['cercarium', 'cercariae', 'cercaria']
例句：
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1.The parasite spreads through the water to infect its host.
这种寄生虫通过水传播，感染宿主。
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2.The disease is caused by a parasitic worm that burrows into the skin.
这种疾病是由一种寄生在皮肤里的蠕虫引起的。
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3. The cercariae hatch from their eggs and become free-swimming larvae.
囊蚴从其卵中孵化出来，成为自由游动的幼虫。