parasitic array

例句：

1. 1. Parasites can cause serious health problems in their hosts.
   寄生虫可以在宿主体内引起严重的健康问题。
2. 2. The parasite spreads through contaminated water.
   这种寄生虫通过受污染的水传播。
3. 3. Researchers are trying to understand the mechanisms that enable parasitic infections.
   研究人员正在尝试理解使寄生虫感染发生的机制。