sheep tick

sheep-tick的词性：
n.（名词）

1. A wingless, louselike fly (Melophagus ovinus) that is parasitic to sheep, causing skin irritations that result in loss of wool. Also called sheep ked
羊虱：一种无翼似虱子的飞虫（羊蜱蝇 蜱蝇属） ，它寄生于绵羊身上，能引起导致羊毛损失的皮肤发炎 也作 sheep ked