preventer
n. 妨碍者；阻扰者；妨碍物
例句
- What can we do to prevent the disease spreading? 我们能做什么来防止这种疾病蔓延呢？
- The authorities took measures to prevent tax fraud. 当局已采取措施防止偷税漏税。
- Does prison do anything to prevent crime? 采取关押方法对制止犯罪有作用吗？
- Dust the repair to prevent adhesion to outer cover. 清整修补处以防与外胎粘连。
- Stir the sauce to prevent it lumping. 把沙司搅拌一下以免结块。
- We should take steps to prevent war. 我们应当采取措施制止战争。