n.牛头狗；手枪；学监助理
adj.顽固的
vt.抓住牛角将牛摔倒
Though there is a brave bulldog protect the house, but I feel like I can't even close my eyes! 就算有一只牛头狗在保护着房子，我还是觉得我好像连眼睛都不敢闭上！
