top-down
adjective [ before noun ] uk/ˌtɒpˈdaʊn/ us/ˌtɑːpˈdaʊn/
自上而下的
used to refer to a situation in which decisions are made by a few people in authority rather than by the people who are affected by the decisions
a top-down approach/strategy 自上而下的做法／策略
Opposite: bottom-up