由于缺乏正规教育，许多文化程度不足的父母难以辅导孩子作业。

Many ___under-educated parents find it hard to help their children with homework due to lack of formal schooling.

由于缺乏专业培训，这些工人被认为受教育程度不足。

These workers are considered ___under-educated due to lack of professional training.