prophylactic [ˌprɑ:fɪˈlæktɪk]

例句:

• Vaccination and other prophylactic measures can be carried out.
  可以采取疫苗接种和其他预防措施。
  
• The region began to use quinine successfully as a prophylactic.
  该地区开始成功地用奎宁作为预防剂。
  
• Prophylactic antibiotics are definitely contraindicated.
  预防性的使用抗菌素肯定是禁忌的.
  
• Troops were here as a prophylactic against rioting.
  来自G. Black
• Not a discarded prophylactic nor attention-seeking stunt to be seen.
  来自THETIMES
• She knows people who use Saran Wrap as a prophylactic.
  来自NEWYORKER