horsefly
n. 马蝇;虻
例句
That horsefly is the only thing keeping this old horse moving.
那只马蝇是唯一能让这匹老马活动的东西。
He noticed a big horsefly biting the flank of the farmers horse.
他注意到一个大马蝇在咬农夫旁边的马。
Egypt is a pretty heifer, from the north a horsefly lights upon her.
埃及是一头美丽的小母牛,但是有一只牛蝇从北方向她扑来。