gadfly

US /ˈɡæd.flaɪ/
UK /ˈɡæd.flaɪ/
"gadfly" picture
1.

烦人精, 刺激者

a person who annoys or provokes others with criticism, questions, or new ideas

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He was known as a political gadfly, constantly challenging the status quo.
他被称为政治烦人精，不断挑战现状。
•
The professor acted as a gadfly, encouraging students to think critically.
教授充当刺激者，鼓励学生批判性思考。
:
agitatorprovocateurcritictroublemakernuisance
2.

牛虻, 马蝇

a fly that bites livestock, especially a horsefly

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The horses were bothered by the persistent gadflies.
马匹受到持续的牛虻的困扰。
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A single gadfly can cause a lot of irritation to an animal.
一只牛虻就能给动物带来很多刺激。
:
horseflybotfly