botfly

Both of us were covered in ticks, Cho's boots were held together by threads, and I had a small botfly living in my head.

我们俩都披着条纹麻布，曹的靴子被用绳子栓在一起，我的头上有一只小马蝇。

botfly larva; typically develops inside the body of a horse or sheep or human.

马蝇的幼虫；特征是在马、羊或人的身体内部发育成长。