害群之馬
One scabbed ( sickly ) sheep infects a whole flock.
The rotten apple injures its neighbour.
Bad egg of the community.
eg：That naughty boy is the black sheep of the family.
中英俚語俗語來源：莊子：" 夫為天下者，亦莫以異乎牧馬者哉 ? 亦去其害馬者而已矣。"
害群之馬
One scabbed ( sickly ) sheep infects a whole flock.
The rotten apple injures its neighbour.
Bad egg of the community.
eg：That naughty boy is the black sheep of the family.
中英俚語俗語來源：莊子：" 夫為天下者，亦莫以異乎牧馬者哉 ? 亦去其害馬者而已矣。"
