social gadfly
political gadfly
act as a gadfly
A: Why is he always questioning everything we do?
A：为什么他总是质疑我们所做的每一件事？
B: He's a bit of a gadfly, but he's right about the issues.
B：他有点像个“搅局者”，但他对这些问题的看法是对的。
1) 搅局者
2) 挑衅者
3) 喜欢找茬的人
1. 通过挑衅、批评或干扰来引起关注或促成变革的人
noun
1. A person who upsets the status quo by posing upsetting or provocative questions or criticisms.
Synonym: provocateur, agitator