To compartmentalize something means to divide it into separate sections.
例句
Traditionally men have compartmentalized their lives, never letting their personal lives encroach upon their professional lives.傳統上男人把自己的生活劃分清楚，他們不會讓私生活影響其工作。
英英詞典釋義
Adjective
1. divided up into compartments or categories;
"most sciences have become woefully compartmentalized"