n.带放大器的扩音器；鸣音器

The bullhorn acacia has serious competition. 牛角相思树面临着严峻的挑战。

Then you shall get a real bat and a real bullhorn. 如果你成为一名校长之后，我会给你真正的棒球棒，真正的扩音器。

It's a stage of sorts. Harvey lifts his bullhorn to his lips. 权当一个高台，哈维把扩音器提到嘴边。

Because he liked the stereotype of the principal in the movie, walking in the halls with a baseball bat and a bullhorn. 这是因为他喜欢电影里那位一手拿着棒球棒，一手拿着扩音器在走廊里走来走去的校长的形象。

Mom took out a box with real things in it, a baseball bat, a bullhorn and a note card. 母亲拿出了一个盒子，里面是真正的棒球棒，真正的扩音器，以及一张字条。