do harm to posterity; harm the younger generation; lead young people astray ❍ 论不“打落水狗”是～的。(鲁迅《论“费厄泼赖”应该缓行》) On the Harm Done to Posterity by not Beating Dogs in the Water.
误人子弟
mislead the younger generation;lead young people astray
误人子弟wù rén zǐ dì
形容教师不负责任或无才学，使其学生身受损害。harm the younger generation, lead young people astray, mislead and cause harm to the young men