pseudoscolex

例句：

1. 1. The researcher found that the pseudoscolex was a significant factor in the disease's spread.
   研究人员发现，伪鳃虫是这种疾病传播的一个关键因素。
2. 2. The pseudoscolex is a type of parasite that can cause serious health problems.
   伪鳃虫是一种寄生虫，可以引起严重的健康问题。
3. 3.The pseudoscolex was discovered in the river during a routine survey.
   在一次常规调查中发现了伪鳃虫。