不是说了吗，在努力避免diversity（少数民族入学人数） 像加州和密歇根州先前废AA录取时那样剧烈下降

The guidance arrives as colleges work to avoid the type of diversity decline that has been seen in some states that previously ended affirmative action, including in California and Michigan. Selective colleges in those states saw sharp decreases in minority student enrollment, and some have struggled for decades to recover.