详细解释:n. 大头鱼, 顽固的人
英语解释：
名词 bullhead:
freshwater sculpin with a large flattened bony-plated head with hornlike spinesany of several common freshwater catfishes of the United States详细解释：
bull.head
n.（名词）Any of several large-headed North American freshwater catfishes of the genusIctalurus. 杜父鱼：一种大头的北美淡水杜父鱼 Any of several fishes of the family Cottidae, such as the sculpin and the miller`s thumb.鲇鱼科，杜父鱼科：属于杜父鱼科的鱼，如杜父鱼和鲇鱼Upper Northern U.S. See catfish 【美国北端】 参见 catfish