fly in the ointment

US /flaɪ ɪn ðɪ ˈɔɪnt.mənt/
UK /flaɪ ɪn ðɪ ˈɔɪnt.mənt/
"fly in the ointment" picture
1.

옥에 티, 흠

a minor irritation or flaw that spoils an otherwise pleasant situation

:
The trip was perfect, except for one fly in the ointment: the weather was terrible.
여행은 완벽했지만, 한 가지 옥에 티는 날씨가 끔찍했다는 것이다.
His bad mood was the only fly in the ointment during the celebration.
그의 나쁜 기분은 축하 행사에서 유일한 옥에 티였다.