prevention
/prɪˈvenʃn; prɪ`vɛnʃən/ n
1 [U] (action of) preventing 阻止; 防止; 妨碍; 预防
the prevention of crime 防止犯罪行为
the prevention of cruelty to animals 防止虐待动物.
2 (idm 习语) pre,vention is ,better than `cure (saying 谚) it is easier to prevent sth happening than to undo the damage or cure the disease later 预防胜於治疗; 宜未雨绸缪.