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N-COUNT
（常指帶檐的）帽子
A hat is a head covering, often with a brim round it, which is usually worn out of doors to give protection from the weather.
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N-COUNT
角色;職位;工作
If you say that someone is wearing a particular hat, you mean that they are performing a particular role at that time. If you say that they wear several hats, you mean that they have several roles or jobs.
例句
...putting on my nationalistic hat.
扮演我的民族主義角色
...various problems, including too many people wearing too many hats.
各種問題，包括有太多的人身兼多職
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PHRASE
毫不猶豫地;非常樂意地
If you say that you are ready to do something at the drop of a hat, you mean that you are willing to do it immediately, without hesitating.
例句
India is one part of the world I would go to at the drop of a hat.
印度是世界上我迫不及待想要去的一個地方。
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PHRASE
保守秘密
If you tell someone to keep a piece of information under their hat, you are asking them not to tell anyone else about it.
例句
Look, if I tell you something, will you promise to keep it under your hat?...
喂，如果我告訴你一件事，你能答應保守秘密嗎？
He kept it all very much under his hat.
在這件事兒上他嘴很緊。
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PHRASE
陳腐;陳舊;老式;過時
If you say that something or someone is old hat, you mean that they have existed or been known for a long time, and they have become uninteresting and boring.
例句
The younger generation tell me that religion is 'old hat' and science has proved this.
年輕的一代告訴我，宗教已經過時了，科學已證明了這一點。
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PHRASE
募捐，湊份子（美國英語用 pass the hat）
In British English, if you pass the hat around, you collect money from a group of people, for example in order to give someone a present. In American English, you just say pass the hat .
例句
Professors are passing the hat to help staff in their department.
教授們正在湊錢幫助系里的同事。
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PHRASE
贊賞;欽佩
If you say that you take your hat off to someone, you mean that you admire them for something that they have done.
例句
I take my hat off to Mr Clarke for taking this action...
我很欽佩克拉克先生的這一舉動。
I was impressed by that, you have to take your hat off to the guy.
我對此印象深刻，你不得不欽佩那個家伙。
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CONVENTION
向…致敬
If you say 'Hats off to someone', you are expressing admiration for them.
例句
Hats off to them for supporting the homeless.
向他們幫扶無家可歸者的善舉致敬！
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PHRASE
（常指沒落時）出乎意料地獲取（勝利、成功）
To pull something out of the hat means to do something unexpected which helps you to succeed, often when you are failing.
例句
Southampton had somehow managed to pull another Cup victory out of the hat.
南安普敦隊最終還是出乎意料地又一次獲得了足總杯賽的勝利。
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PHRASE
（比賽中挑選勝出者時）隨機地，任意地
In competitions, if you say that the winners will be drawn or picked out of the hat, you mean that they will be chosen randomly, so everyone has an equal chance of winning.
例句
The first 10 correct entries drawn out of the hat will win a pair of tickets, worth ￡20 each.
隨機抽出的前10位答對問題者將獲得兩張票，每張價值20英鎊。