black sheep
US /blæk ʃiːp/
UK /blæk ʃiːp/

慣用句
1.
厄介者, のけ者
a member of a family or group who is regarded as a disgrace to them
例:
•
He was always considered the black sheep of the family because of his unconventional lifestyle.
彼は型破りなライフスタイルのため、常に家族の厄介者と見なされていた。
•
Every organization has its black sheep, but we try to support everyone.
どの組織にも厄介者はいるが、私たちは皆をサポートしようと努めている。
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