acarid

例句：

1. 1. The acarid parasites feed on the blood of their hosts.
   这些螨虫寄生虫以宿主的血液为食。
2. 2. Acarids are common insect pests that can cause damage to crops.
   螨虫是常见的昆虫害虫，它们可以对农作物造成损害。
3. 3. Researchers have discovered new treatments for acarid infections.
   研究人员已经发现了新的治疗螨虫感染的方法。