a thorn in someone's side
成語所屬單字thorns
a thorn in someone's side — 慣用語
1. a person or thing that continuously causes problems or annoyance for someone ove
1.慣用語
釋義
肉中刺；眼中釘
a person or thing that continuously causes problems or annoyance for someone over a long period.
例句
The leaking roof was a thorn in the landlord's side for years before he finally fixed it.
A rival company became a thorn in the startup's side after launching a very similar product.