如何使用 "security" 造句

1. Good security is going to require tradeoffs .
良好的安全性势必需要权衡。
2. Security is a problem too .
安全也是一大问题。
3. Job security is all but gone .
就业保障几乎已不存在。
4. She knew he was plain-clothes security .
她知道他是便衣保安。
5. That meant they could be used as security for other purchases .
那就意味着它们可以作为证券进行其他交易。