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（汽车等的）喇叭;汽笛;警报器
On a vehicle such as a car, the horn is the device that makes a loud noise as a signal or warning.
例句
He sounded the car horn.
他按响了汽车喇叭。
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(牛、鹿等动物的）角
The horns of an animal such as a cow or deer are the hard pointed things that grow from its head.
例句
A mature cow has horns.
成年奶牛有犄角。
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角质
Horn is the hard substance that the horns of animals are made of. Horn is sometimes used to make objects such as spoons, buttons, or ornaments.
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（铜管乐器中的）法国号，圆号
A horn is a musical instrument of the brass family. It is a long circular metal tube, wide at one end, which you play by blowing.
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号（角）（一种简单乐器，由一根金属管组成，一端宽，一端窄）
A horn is a simple musical instrument consisting of a metal tube that is wide at one end and narrow at the other. You play it by blowing into it.
例句
...a hunting horn.
猎号
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角状物;喇叭形物
A horn is a hollow curved object that is narrow at one end and wide at the other.
例句
...a wind-up gramophone with a big horn.
带有一个大喇叭形扬声器的发条式留声机
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PHRASE
自夸;自吹自擂
If you blow your own horn, you boast about yourself.
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PHR-RECIP
争吵;争论
If two people lock horns, they argue about something.
例句
During his six years in office, Seidman has often locked horns with lawmakers.
在任的6年中，塞德曼经常和立法议员争得不可开交。
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PHRASE
进退维谷;左右为难
If you are on the horns of a dilemma, you have to choose between two things, both of which are unpleasant or difficult.
例句
The bird is caught on the horns of a dilemma. Should it attack the predator, even though it then risks its own life? Or should it get out while the going is good?
这只鸟进退维谷。是应该冒着生命危险攻击捕食者呢？还是应该及早逃命？
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PHRASE
变得谨慎行事；（尤指）紧缩开支
If someone pulls in their horns or draws in their horns, they start behaving more cautiously than they did before, especially by spending less money.
例句
Customers are drawing in their horns at a time of high interest rates.
消费者在高利率时期都在紧缩开支。