preventv.预防;防止,阻止;挡住
prevent slipping防倒防滑
preventing water阻水
preventing brain脑保护
prevent accident防止意外事故
prevent measures防治对策
prevent deadlock预防死锁
preventing flood河道防洪
prevent mistakesvi.避免错误
prevent diseases预防疾病。
preventing cough镇咳