a thorn in somebody's sidePROBLEMsomeone or something that annoys you or causes problems for a long period of time 某人的肉中刺〔指长时间让你心烦或给你惹麻烦的人或事〕,使人苦恼[招来麻烦]的人[事] He’s been a thorn in the side of the party leadership for years. 他多年来一直是该党领导人心头的一根刺。
a thorn in somebody’s side• The man has been a thorn in our side since the day he arrived three weeks ago.• Gino was a thorn in their side.
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