pre·ven·tion /prɪˈvenʃən，priː-/ n. | phr. n. 1. 防止，预防；阻止；妨碍 disease prevention 防病 It's a thing there's no prevention for. 那是件无法预防的事。 2. 〈罕〉预防药；预防法 Keeping dry is a prevention against colds. 保持干燥可以预防感冒。
phr. Prevention is better than cure. 〈谚〉亡羊补牢不如未雨绸缪。