preventionn.阻止;妨碍;预防
prevention of pirate预防海盗
prevention of errors预防错误
prevention patrolman防火员
Prevention behaviors预防行为
prevention of alkali防碱
prevention of caries龋病预防
prevention technology防治技术
prevention of killing被害预防
Prevention/control预防控制
prevention in advance事前预防机制