bulldog

名词 bulldog:

1. a sturdy thickset short-haired breed with a large head and strong undershot lower jaw; developed originally in England for bull baiting
   同义词：English bulldog

动词 bulldog:

1. attack viciously and ferociously
2. throw a steer by seizing the horns and twisting the neck, as in a rodeo

1. Someone gave her a bulldog.
   有人送给她一条叭喇狗。
2. He opened the drawer and took out a bulldog.
   他打开抽屉拿出了一把左轮手枪。

bull.dog

n.（名词）
Any of a breed of short-haired dog characterized by a large head, strong, square jaws with dewlaps, and a stocky body. It was originally bred for bullbaiting.
斗牛犬，喇叭狗：一种短毛狗，特点是大脑袋，体壮，带有垂肉的方下巴，身体结实。最早喂养它们是为玩嗾狗逗牛戏
A short-barreled, large-caliber revolver or pistol.
手枪：短管，大口经的左轮手枪或手枪
A heat-resistant material used to line puddling furnaces.
隔热材料：搅炼炉的打炉底隔热材料
Chiefly British A proctor`s assistant at Oxford University or Cambridge University.
【多用于英国】 学监助理：牛津大学或剑桥大学里学监的助手
adj.（形容词）
Stubborn.
顽固的
v.tr.（及物动词）
bull.dogged,bull.dog.ging,bull.dogs 【美国西部】
To throw (a calf or steer) by seizing its horns and twisting its neck until the animal falls.
抓住牛角将牛摔倒：抓住（公牛或阉牛的）角，扭它们的脖子直到它们摔倒为止，然后把它们扔出去

【引伸】
bull.dog.ger
n.（名词）