Context:
One attempts to undertake a higher-level of learning in a specific intensive
study course.
However, this intensive
study course erases the foundation previously obtained in prior elementary courses. This is mainly caused by the retardation of a professor, lack of knowing the national language, or both.
We tried to take third-year
Spanish, but because our
teacher could not speak
English or effectively communicate in Spanish, we unlearned the two years of Spanish we had previously taken, leaving us unprepared for the intensive Advanced Placement course that lay ahead.