thorn in someone's side片语KK [θɔrn ɪn ˋsʌmˏwʌnz saɪd] /θɔɹn ɪn ˈsʌmˌwʌnz saɪd/发音片语1眼中钉、芒刺在背、麻烦的根源That new competitor has been a thorn in our side for years.那家新的竞争对手多年来一直是我们的眼中钉。用这个字练口说→