词典释义：
释义
〈非正式〉立即；莫名其妙地
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he used to be very bashful, blushing at the drop of a hat. 他曾经非常害羞，会莫名其妙地脸红。
双语例句
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India is one part of the world I would go to at the drop of a hat.
印度是世界上我即刻就想去的一个地方。
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The company can't expect me to move my home and family at the drop of a hat.
公司不可能指望我立即搬家。
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I love to travel, I'm ready to go at the drop of a hat.
我喜欢旅游，我准备马上就去。
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Call Tom, he can come at the drop of a hat.
给汤姆打电话吧，他召之即来。
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They say teenagers laugh at the drop of a hat.
他们说十几岁的少年们随性的欢笑。
近义词