求翻译：袋鼠家族中“种族歧视”十分严重，它们对外族成员进入家族不能容忍，甚至本家族成员在长期外出后再回来也是不受欢迎的。家族即使接受新成员，也要教训一番，直到新成员学会许多“规矩”后，才能和家族融为一体。是什么意思？

Kangaroo family, "racial discrimination" is very serious, their external family members into the family can not tolerate, and even the family members come back out in the long term is unpopular. Even if the acceptance of new family members have learned about it, until the new members learn many "rul