1. On one side are scientists who believe that condoms should be promoted as a crucial line of defense against several STDs and cervical cancer.
2. " The health check is the first line of defense for a couple's happiness, " she said.
3. The judicial department is the last line of defense for social justice.
4. China and the United States agreed Monday to open a direct telephone line between the defense ministries of the two countries.
5. Random searches are by nature rare searches, so a suicide bomber could easily slip through this line of defense.
6. Regulation is first and foremost the responsibility of national regulators who constitute the first line of defense against market instability.
7. " Mediation should be the first line of defense to maintain social stability and promote harmony, " Wu said.
8. Veterinarians are the first line of defense against animal diseases that can spread quickly.
9. We all know that this line of defense is not going to work.