You'll also want to examine your fish periodically for signs of parasite infestation.
你也想看看你的鱼，定期为标志寄生虫感染。
Medical studies have shown that parasite infestation is a cause or contributing factor to many of the diseases plaguing mankind today.
医学研究表明寄生虫的大量出没是造成许多今天人类疾病因素。
Medical studies have shown that parasite infestation is a cause or contributing factor to many of the diseases plaguing mankind today.
医学研究表明寄生虫的大量出没是造成许多今天人类疾病因素。
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