volume security的用法和樣例：
例句
- We need to tighten up security at the prison.
我們必須加強監獄的安全性。 - Mobile code raises a raft of security issues.
行動(dòng)程式導致大量安全性問(wèn)題。 - Generally the security was first-rate.
總的來(lái)說(shuō)，保密工作還是干得挺出色的。 - The British were constantly increasing their cipher security.
英國人不斷地加強密碼的保密措施。
