thorn in someone's side片語KK [θɔrn ɪn ˋsʌmˏwʌnz saɪd] /θɔɹn ɪn ˈsʌmˌwʌnz saɪd/發音片語1眼中釘、芒刺在背、麻煩的根源That new competitor has been a thorn in our side for years.那家新的競爭對手多年來一直是我們的眼中釘。