a guarded reply的用法和样例：
- She gave me a guarded reply.
- When asked if China would put Bird Flu under complete control within one month's time, the spokeswoman gave a guarded reply.
- He escaped by passing himself off as a guard.
- He was a guard of gigantic strength.
- A guard,porter,or watcher of a gate or tower.
- Post a guard outside the palace.