初級英語口語教程：害群之馬

以下是整理的《初級英語口語教程：害群之馬》，希望大家喜歡！
    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?！?